Home / 48,210.20-72,315.30-13,149.80

Finding the Fourth Proportional to 48,210.20, 72,315.30 and 13,149.80

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Solution

The fourth proportional to 48,210.20, 72,315.30 and 13,149.80 is: 19,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,210.20 : 72,315.30 = 13,149.80 : x
  2. Step 2: Convert to fraction form
    48,210.20/72,315.30 = 13,149.80/x
  3. Step 3: Cross multiply
    48,210.20x = 72,315.30 × 13,149.80
  4. Step 4: Simplify right side
    48,210.20x = 950,931,731.94
  5. Step 5: Solve for x
    x = 950,931,731.94/48,210.20
  6. Step 6: Final answer
    x = 19,724.70

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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.