Home / 81,368,285.82-112,317,699.51-53,875,071.42

Finding the Fourth Proportional to 81,368,285.82, 112,317,699.51 and 53,875,071.42

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Solution

The fourth proportional to 81,368,285.82, 112,317,699.51 and 53,875,071.42 is: 74,367,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,368,285.82 : 112,317,699.51 = 53,875,071.42 : x
  2. Step 2: Convert to fraction form
    81,368,285.82/112,317,699.51 = 53,875,071.42/x
  3. Step 3: Cross multiply
    81,368,285.82x = 112,317,699.51 × 53,875,071.42
  4. Step 4: Simplify right side
    81,368,285.82x = 6,051,124,082,831,349
  5. Step 5: Solve for x
    x = 6,051,124,082,831,349/81,368,285.82
  6. Step 6: Final answer
    x = 74,367,107.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.