Home / 87,445.30-120,670.95-51,646.90

Finding the Fourth Proportional to 87,445.30, 120,670.95 and 51,646.90

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Solution

The fourth proportional to 87,445.30, 120,670.95 and 51,646.90 is: 71,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,445.30 : 120,670.95 = 51,646.90 : x
  2. Step 2: Convert to fraction form
    87,445.30/120,670.95 = 51,646.90/x
  3. Step 3: Cross multiply
    87,445.30x = 120,670.95 × 51,646.90
  4. Step 4: Simplify right side
    87,445.30x = 6,232,280,487.56
  5. Step 5: Solve for x
    x = 6,232,280,487.56/87,445.30
  6. Step 6: Final answer
    x = 71,270.62

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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.