Home / 80,607.41-120,726.70-38,517.07

Finding the Fourth Proportional to 80,607.41, 120,726.70 and 38,517.07

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Solution

The fourth proportional to 80,607.41, 120,726.70 and 38,517.07 is: 57,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.41 : 120,726.70 = 38,517.07 : x
  2. Step 2: Convert to fraction form
    80,607.41/120,726.70 = 38,517.07/x
  3. Step 3: Cross multiply
    80,607.41x = 120,726.70 × 38,517.07
  4. Step 4: Simplify right side
    80,607.41x = 4,650,038,754.77
  5. Step 5: Solve for x
    x = 4,650,038,754.77/80,607.41
  6. Step 6: Final answer
    x = 57,687.48

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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.