Home / 80,130.55-120,254.89-38,010.76

Finding the Fourth Proportional to 80,130.55, 120,254.89 and 38,010.76

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Solution

The fourth proportional to 80,130.55, 120,254.89 and 38,010.76 is: 57,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130.55 : 120,254.89 = 38,010.76 : x
  2. Step 2: Convert to fraction form
    80,130.55/120,254.89 = 38,010.76/x
  3. Step 3: Cross multiply
    80,130.55x = 120,254.89 × 38,010.76
  4. Step 4: Simplify right side
    80,130.55x = 4,570,979,762.62
  5. Step 5: Solve for x
    x = 4,570,979,762.62/80,130.55
  6. Step 6: Final answer
    x = 57,044.16

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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.