Home / 90,572.76-135,815.45-37,968.12

Finding the Fourth Proportional to 90,572.76, 135,815.45 and 37,968.12

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Solution

The fourth proportional to 90,572.76, 135,815.45 and 37,968.12 is: 56,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,572.76 : 135,815.45 = 37,968.12 : x
  2. Step 2: Convert to fraction form
    90,572.76/135,815.45 = 37,968.12/x
  3. Step 3: Cross multiply
    90,572.76x = 135,815.45 × 37,968.12
  4. Step 4: Simplify right side
    90,572.76x = 5,156,657,113.61
  5. Step 5: Solve for x
    x = 5,156,657,113.61/90,572.76
  6. Step 6: Final answer
    x = 56,933.86

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1.5x scale

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.