Home / 52,211.20-78,341.10-27,279.40

Finding the Fourth Proportional to 52,211.20, 78,341.10 and 27,279.40

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Solution

The fourth proportional to 52,211.20, 78,341.10 and 27,279.40 is: 40,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.20 : 78,341.10 = 27,279.40 : x
  2. Step 2: Convert to fraction form
    52,211.20/78,341.10 = 27,279.40/x
  3. Step 3: Cross multiply
    52,211.20x = 78,341.10 × 27,279.40
  4. Step 4: Simplify right side
    52,211.20x = 2,137,098,203.34
  5. Step 5: Solve for x
    x = 2,137,098,203.34/52,211.20
  6. Step 6: Final answer
    x = 40,931.80

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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.