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Finding the Fourth Proportional to 88,687.30, 133,030.95 and 39,439.30

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Solution

The fourth proportional to 88,687.30, 133,030.95 and 39,439.30 is: 59,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.30 : 133,030.95 = 39,439.30 : x
  2. Step 2: Convert to fraction form
    88,687.30/133,030.95 = 39,439.30/x
  3. Step 3: Cross multiply
    88,687.30x = 133,030.95 × 39,439.30
  4. Step 4: Simplify right side
    88,687.30x = 5,246,647,546.34
  5. Step 5: Solve for x
    x = 5,246,647,546.34/88,687.30
  6. Step 6: Final answer
    x = 59,158.95

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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.