Home / 81,700.28-122,655.37-62,992.20

Finding the Fourth Proportional to 81,700.28, 122,655.37 and 62,992.20

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Solution

The fourth proportional to 81,700.28, 122,655.37 and 62,992.20 is: 94,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,700.28 : 122,655.37 = 62,992.20 : x
  2. Step 2: Convert to fraction form
    81,700.28/122,655.37 = 62,992.20/x
  3. Step 3: Cross multiply
    81,700.28x = 122,655.37 × 62,992.20
  4. Step 4: Simplify right side
    81,700.28x = 7,726,331,598.11
  5. Step 5: Solve for x
    x = 7,726,331,598.11/81,700.28
  6. Step 6: Final answer
    x = 94,569.22

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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.