Home / 87,000.32-120,068.87-48,766.36

Finding the Fourth Proportional to 87,000.32, 120,068.87 and 48,766.36

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Solution

The fourth proportional to 87,000.32, 120,068.87 and 48,766.36 is: 67,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.32 : 120,068.87 = 48,766.36 : x
  2. Step 2: Convert to fraction form
    87,000.32/120,068.87 = 48,766.36/x
  3. Step 3: Cross multiply
    87,000.32x = 120,068.87 × 48,766.36
  4. Step 4: Simplify right side
    87,000.32x = 5,855,321,495.38
  5. Step 5: Solve for x
    x = 5,855,321,495.38/87,000.32
  6. Step 6: Final answer
    x = 67,302.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.