Home / 48,217.49-72,337.79-20,121.92

Finding the Fourth Proportional to 48,217.49, 72,337.79 and 20,121.92

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Solution

The fourth proportional to 48,217.49, 72,337.79 and 20,121.92 is: 30,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,217.49 : 72,337.79 = 20,121.92 : x
  2. Step 2: Convert to fraction form
    48,217.49/72,337.79 = 20,121.92/x
  3. Step 3: Cross multiply
    48,217.49x = 72,337.79 × 20,121.92
  4. Step 4: Simplify right side
    48,217.49x = 1,455,575,223.36
  5. Step 5: Solve for x
    x = 1,455,575,223.36/48,217.49
  6. Step 6: Final answer
    x = 30,187.70

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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.