Home / 58,000.20-87,000.30-28,475.70

Finding the Fourth Proportional to 58,000.20, 87,000.30 and 28,475.70

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Solution

The fourth proportional to 58,000.20, 87,000.30 and 28,475.70 is: 42,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,000.20 : 87,000.30 = 28,475.70 : x
  2. Step 2: Convert to fraction form
    58,000.20/87,000.30 = 28,475.70/x
  3. Step 3: Cross multiply
    58,000.20x = 87,000.30 × 28,475.70
  4. Step 4: Simplify right side
    58,000.20x = 2,477,394,442.71
  5. Step 5: Solve for x
    x = 2,477,394,442.71/58,000.20
  6. Step 6: Final answer
    x = 42,713.55

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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.