Home / 52,720.20-78,888.30-38,896.20

Finding the Fourth Proportional to 52,720.20, 78,888.30 and 38,896.20

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Solution

The fourth proportional to 52,720.20, 78,888.30 and 38,896.20 is: 58,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,720.20 : 78,888.30 = 38,896.20 : x
  2. Step 2: Convert to fraction form
    52,720.20/78,888.30 = 38,896.20/x
  3. Step 3: Cross multiply
    52,720.20x = 78,888.30 × 38,896.20
  4. Step 4: Simplify right side
    52,720.20x = 3,068,455,094.46
  5. Step 5: Solve for x
    x = 3,068,455,094.46/52,720.20
  6. Step 6: Final answer
    x = 58,202.65

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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.