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Finding the Fourth Proportional to 60,144.39, 90,157.05 and 28,498.50

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Solution

The fourth proportional to 60,144.39, 90,157.05 and 28,498.50 is: 42,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,144.39 : 90,157.05 = 28,498.50 : x
  2. Step 2: Convert to fraction form
    60,144.39/90,157.05 = 28,498.50/x
  3. Step 3: Cross multiply
    60,144.39x = 90,157.05 × 28,498.50
  4. Step 4: Simplify right side
    60,144.39x = 2,569,340,689.43
  5. Step 5: Solve for x
    x = 2,569,340,689.43/60,144.39
  6. Step 6: Final answer
    x = 42,719.54

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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.