Home / 90,748.14-136,122.21-28,423.50

Finding the Fourth Proportional to 90,748.14, 136,122.21 and 28,423.50

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Solution

The fourth proportional to 90,748.14, 136,122.21 and 28,423.50 is: 42,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748.14 : 136,122.21 = 28,423.50 : x
  2. Step 2: Convert to fraction form
    90,748.14/136,122.21 = 28,423.50/x
  3. Step 3: Cross multiply
    90,748.14x = 136,122.21 × 28,423.50
  4. Step 4: Simplify right side
    90,748.14x = 3,869,069,635.94
  5. Step 5: Solve for x
    x = 3,869,069,635.94/90,748.14
  6. Step 6: Final answer
    x = 42,635.25

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Similar ratio
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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.