Home / 80,547.14-120,864.18-47,332.10

Finding the Fourth Proportional to 80,547.14, 120,864.18 and 47,332.10

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Solution

The fourth proportional to 80,547.14, 120,864.18 and 47,332.10 is: 71,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.14 : 120,864.18 = 47,332.10 : x
  2. Step 2: Convert to fraction form
    80,547.14/120,864.18 = 47,332.10/x
  3. Step 3: Cross multiply
    80,547.14x = 120,864.18 × 47,332.10
  4. Step 4: Simplify right side
    80,547.14x = 5,720,755,454.18
  5. Step 5: Solve for x
    x = 5,720,755,454.18/80,547.14
  6. Step 6: Final answer
    x = 71,023.69

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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.