Home / 52,580.20-78,870.30-48,279.40

Finding the Fourth Proportional to 52,580.20, 78,870.30 and 48,279.40

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Solution

The fourth proportional to 52,580.20, 78,870.30 and 48,279.40 is: 72,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,580.20 : 78,870.30 = 48,279.40 : x
  2. Step 2: Convert to fraction form
    52,580.20/78,870.30 = 48,279.40/x
  3. Step 3: Cross multiply
    52,580.20x = 78,870.30 × 48,279.40
  4. Step 4: Simplify right side
    52,580.20x = 3,807,810,761.82
  5. Step 5: Solve for x
    x = 3,807,810,761.82/52,580.20
  6. Step 6: Final answer
    x = 72,419.10

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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.