Home / 90,511.28-135,590.30-59,251.76

Finding the Fourth Proportional to 90,511.28, 135,590.30 and 59,251.76

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Solution

The fourth proportional to 90,511.28, 135,590.30 and 59,251.76 is: 88,762.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,511.28 : 135,590.30 = 59,251.76 : x
  2. Step 2: Convert to fraction form
    90,511.28/135,590.30 = 59,251.76/x
  3. Step 3: Cross multiply
    90,511.28x = 135,590.30 × 59,251.76
  4. Step 4: Simplify right side
    90,511.28x = 8,033,963,913.93
  5. Step 5: Solve for x
    x = 8,033,963,913.93/90,511.28
  6. Step 6: Final answer
    x = 88,762.02

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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.