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Finding the Fourth Proportional to 60,265.76, 90,280.96 and 28,630.80

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Solution

The fourth proportional to 60,265.76, 90,280.96 and 28,630.80 is: 42,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,265.76 : 90,280.96 = 28,630.80 : x
  2. Step 2: Convert to fraction form
    60,265.76/90,280.96 = 28,630.80/x
  3. Step 3: Cross multiply
    60,265.76x = 90,280.96 × 28,630.80
  4. Step 4: Simplify right side
    60,265.76x = 2,584,816,109.57
  5. Step 5: Solve for x
    x = 2,584,816,109.57/60,265.76
  6. Step 6: Final answer
    x = 42,890.29

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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.