Home / 52,543.20-78,622.80-38,719.20

Finding the Fourth Proportional to 52,543.20, 78,622.80 and 38,719.20

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Solution

The fourth proportional to 52,543.20, 78,622.80 and 38,719.20 is: 57,937.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,543.20 : 78,622.80 = 38,719.20 : x
  2. Step 2: Convert to fraction form
    52,543.20/78,622.80 = 38,719.20/x
  3. Step 3: Cross multiply
    52,543.20x = 78,622.80 × 38,719.20
  4. Step 4: Simplify right side
    52,543.20x = 3,044,211,917.76
  5. Step 5: Solve for x
    x = 3,044,211,917.76/52,543.20
  6. Step 6: Final answer
    x = 57,937.31

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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.