Home / 90,439.42-135,631.38-62,538.76

Finding the Fourth Proportional to 90,439.42, 135,631.38 and 62,538.76

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Solution

The fourth proportional to 90,439.42, 135,631.38 and 62,538.76 is: 93,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,439.42 : 135,631.38 = 62,538.76 : x
  2. Step 2: Convert to fraction form
    90,439.42/135,631.38 = 62,538.76/x
  3. Step 3: Cross multiply
    90,439.42x = 135,631.38 × 62,538.76
  4. Step 4: Simplify right side
    90,439.42x = 8,482,218,322.29
  5. Step 5: Solve for x
    x = 8,482,218,322.29/90,439.42
  6. Step 6: Final answer
    x = 93,788.95

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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.