Home / 80,130.96-120,255.50-38,011.16

Finding the Fourth Proportional to 80,130.96, 120,255.50 and 38,011.16

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Solution

The fourth proportional to 80,130.96, 120,255.50 and 38,011.16 is: 57,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130.96 : 120,255.50 = 38,011.16 : x
  2. Step 2: Convert to fraction form
    80,130.96/120,255.50 = 38,011.16/x
  3. Step 3: Cross multiply
    80,130.96x = 120,255.50 × 38,011.16
  4. Step 4: Simplify right side
    80,130.96x = 4,571,051,233.23
  5. Step 5: Solve for x
    x = 4,571,051,233.23/80,130.96
  6. Step 6: Final answer
    x = 57,044.76

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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.