Home / 90,566.95-135,532.59-72,753.83

Finding the Fourth Proportional to 90,566.95, 135,532.59 and 72,753.83

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Solution

The fourth proportional to 90,566.95, 135,532.59 and 72,753.83 is: 108,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,566.95 : 135,532.59 = 72,753.83 : x
  2. Step 2: Convert to fraction form
    90,566.95/135,532.59 = 72,753.83/x
  3. Step 3: Cross multiply
    90,566.95x = 135,532.59 × 72,753.83
  4. Step 4: Simplify right side
    90,566.95x = 9,860,515,012.32
  5. Step 5: Solve for x
    x = 9,860,515,012.32/90,566.95
  6. Step 6: Final answer
    x = 108,875.43

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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.