Home / 72,149.64-108,280.20-47,182.92

Finding the Fourth Proportional to 72,149.64, 108,280.20 and 47,182.92

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Solution

The fourth proportional to 72,149.64, 108,280.20 and 47,182.92 is: 70,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,149.64 : 108,280.20 = 47,182.92 : x
  2. Step 2: Convert to fraction form
    72,149.64/108,280.20 = 47,182.92/x
  3. Step 3: Cross multiply
    72,149.64x = 108,280.20 × 47,182.92
  4. Step 4: Simplify right side
    72,149.64x = 5,108,976,014.18
  5. Step 5: Solve for x
    x = 5,108,976,014.18/72,149.64
  6. Step 6: Final answer
    x = 70,810.83

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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.