Home / 48,204.12-72,304.05-13,143.78

Finding the Fourth Proportional to 48,204.12, 72,304.05 and 13,143.78

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Solution

The fourth proportional to 48,204.12, 72,304.05 and 13,143.78 is: 19,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,204.12 : 72,304.05 = 13,143.78 : x
  2. Step 2: Convert to fraction form
    48,204.12/72,304.05 = 13,143.78/x
  3. Step 3: Cross multiply
    48,204.12x = 72,304.05 × 13,143.78
  4. Step 4: Simplify right side
    48,204.12x = 950,348,526.31
  5. Step 5: Solve for x
    x = 950,348,526.31/48,204.12
  6. Step 6: Final answer
    x = 19,715.09

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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.