Home / 85,737.71-118,359.07-57,105.02

Finding the Fourth Proportional to 85,737.71, 118,359.07 and 57,105.02

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Solution

The fourth proportional to 85,737.71, 118,359.07 and 57,105.02 is: 78,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,737.71 : 118,359.07 = 57,105.02 : x
  2. Step 2: Convert to fraction form
    85,737.71/118,359.07 = 57,105.02/x
  3. Step 3: Cross multiply
    85,737.71x = 118,359.07 × 57,105.02
  4. Step 4: Simplify right side
    85,737.71x = 6,758,897,212.67
  5. Step 5: Solve for x
    x = 6,758,897,212.67/85,737.71
  6. Step 6: Final answer
    x = 78,832.25

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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.