Home / 52,663.20-78,994.80-42,755.28

Finding the Fourth Proportional to 52,663.20, 78,994.80 and 42,755.28

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Solution

The fourth proportional to 52,663.20, 78,994.80 and 42,755.28 is: 64,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,663.20 : 78,994.80 = 42,755.28 : x
  2. Step 2: Convert to fraction form
    52,663.20/78,994.80 = 42,755.28/x
  3. Step 3: Cross multiply
    52,663.20x = 78,994.80 × 42,755.28
  4. Step 4: Simplify right side
    52,663.20x = 3,377,444,792.54
  5. Step 5: Solve for x
    x = 3,377,444,792.54/52,663.20
  6. Step 6: Final answer
    x = 64,132.92

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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.