Home / 81,795.30-112,875.57-53,500.38

Finding the Fourth Proportional to 81,795.30, 112,875.57 and 53,500.38

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Solution

The fourth proportional to 81,795.30, 112,875.57 and 53,500.38 is: 73,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,795.30 : 112,875.57 = 53,500.38 : x
  2. Step 2: Convert to fraction form
    81,795.30/112,875.57 = 53,500.38/x
  3. Step 3: Cross multiply
    81,795.30x = 112,875.57 × 53,500.38
  4. Step 4: Simplify right side
    81,795.30x = 6,038,885,887.72
  5. Step 5: Solve for x
    x = 6,038,885,887.72/81,795.30
  6. Step 6: Final answer
    x = 73,829.25

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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.