Home / 72,568.47-108,750.63-57,711.45

Finding the Fourth Proportional to 72,568.47, 108,750.63 and 57,711.45

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Solution

The fourth proportional to 72,568.47, 108,750.63 and 57,711.45 is: 86,486.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.47 : 108,750.63 = 57,711.45 : x
  2. Step 2: Convert to fraction form
    72,568.47/108,750.63 = 57,711.45/x
  3. Step 3: Cross multiply
    72,568.47x = 108,750.63 × 57,711.45
  4. Step 4: Simplify right side
    72,568.47x = 6,276,156,545.71
  5. Step 5: Solve for x
    x = 6,276,156,545.71/72,568.47
  6. Step 6: Final answer
    x = 86,486.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.