Home / 52,702.20-78,861.30-38,878.20

Finding the Fourth Proportional to 52,702.20, 78,861.30 and 38,878.20

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Solution

The fourth proportional to 52,702.20, 78,861.30 and 38,878.20 is: 58,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,702.20 : 78,861.30 = 38,878.20 : x
  2. Step 2: Convert to fraction form
    52,702.20/78,861.30 = 38,878.20/x
  3. Step 3: Cross multiply
    52,702.20x = 78,861.30 × 38,878.20
  4. Step 4: Simplify right side
    52,702.20x = 3,065,985,393.66
  5. Step 5: Solve for x
    x = 3,065,985,393.66/52,702.20
  6. Step 6: Final answer
    x = 58,175.66

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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.