Home / 80,920.43-121,444.20-56,134.89

Finding the Fourth Proportional to 80,920.43, 121,444.20 and 56,134.89

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Solution

The fourth proportional to 80,920.43, 121,444.20 and 56,134.89 is: 84,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,920.43 : 121,444.20 = 56,134.89 : x
  2. Step 2: Convert to fraction form
    80,920.43/121,444.20 = 56,134.89/x
  3. Step 3: Cross multiply
    80,920.43x = 121,444.20 × 56,134.89
  4. Step 4: Simplify right side
    80,920.43x = 6,817,256,808.14
  5. Step 5: Solve for x
    x = 6,817,256,808.14/80,920.43
  6. Step 6: Final answer
    x = 84,246.43

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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.