Home / 80,275.17-120,437.07-30,370.59

Finding the Fourth Proportional to 80,275.17, 120,437.07 and 30,370.59

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Solution

The fourth proportional to 80,275.17, 120,437.07 and 30,370.59 is: 45,565.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,275.17 : 120,437.07 = 30,370.59 : x
  2. Step 2: Convert to fraction form
    80,275.17/120,437.07 = 30,370.59/x
  3. Step 3: Cross multiply
    80,275.17x = 120,437.07 × 30,370.59
  4. Step 4: Simplify right side
    80,275.17x = 3,657,744,873.77
  5. Step 5: Solve for x
    x = 3,657,744,873.77/80,275.17
  6. Step 6: Final answer
    x = 45,565.08

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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.