Home / 81,386.64-112,316.13-45,577.62

Finding the Fourth Proportional to 81,386.64, 112,316.13 and 45,577.62

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Solution

The fourth proportional to 81,386.64, 112,316.13 and 45,577.62 is: 62,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386.64 : 112,316.13 = 45,577.62 : x
  2. Step 2: Convert to fraction form
    81,386.64/112,316.13 = 45,577.62/x
  3. Step 3: Cross multiply
    81,386.64x = 112,316.13 × 45,577.62
  4. Step 4: Simplify right side
    81,386.64x = 5,119,101,893.01
  5. Step 5: Solve for x
    x = 5,119,101,893.01/81,386.64
  6. Step 6: Final answer
    x = 62,898.55

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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.