Home / 45,332.72-67,999-12,052.80

Finding the Fourth Proportional to 45,332.72, 67,999 and 12,052.80

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Solution

The fourth proportional to 45,332.72, 67,999 and 12,052.80 is: 18,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,332.72 : 67,999 = 12,052.80 : x
  2. Step 2: Convert to fraction form
    45,332.72/67,999 = 12,052.80/x
  3. Step 3: Cross multiply
    45,332.72x = 67,999 × 12,052.80
  4. Step 4: Simplify right side
    45,332.72x = 819,578,347.20
  5. Step 5: Solve for x
    x = 819,578,347.20/45,332.72
  6. Step 6: Final answer
    x = 18,079.18

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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.