Home / 72,184.37-108,276.55-38,920.10

Finding the Fourth Proportional to 72,184.37, 108,276.55 and 38,920.10

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Solution

The fourth proportional to 72,184.37, 108,276.55 and 38,920.10 is: 58,380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,184.37 : 108,276.55 = 38,920.10 : x
  2. Step 2: Convert to fraction form
    72,184.37/108,276.55 = 38,920.10/x
  3. Step 3: Cross multiply
    72,184.37x = 108,276.55 × 38,920.10
  4. Step 4: Simplify right side
    72,184.37x = 4,214,133,514.97
  5. Step 5: Solve for x
    x = 4,214,133,514.97/72,184.37
  6. Step 6: Final answer
    x = 58,380.14

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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.