Home / 81,331.02-112,135.59-62,234.46

Finding the Fourth Proportional to 81,331.02, 112,135.59 and 62,234.46

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Solution

The fourth proportional to 81,331.02, 112,135.59 and 62,234.46 is: 85,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.02 : 112,135.59 = 62,234.46 : x
  2. Step 2: Convert to fraction form
    81,331.02/112,135.59 = 62,234.46/x
  3. Step 3: Cross multiply
    81,331.02x = 112,135.59 × 62,234.46
  4. Step 4: Simplify right side
    81,331.02x = 6,978,697,890.43
  5. Step 5: Solve for x
    x = 6,978,697,890.43/81,331.02
  6. Step 6: Final answer
    x = 85,806.10

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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.