Home / 52,288.96-78,442.56-17,219.20

Finding the Fourth Proportional to 52,288.96, 78,442.56 and 17,219.20

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Solution

The fourth proportional to 52,288.96, 78,442.56 and 17,219.20 is: 25,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,288.96 : 78,442.56 = 17,219.20 : x
  2. Step 2: Convert to fraction form
    52,288.96/78,442.56 = 17,219.20/x
  3. Step 3: Cross multiply
    52,288.96x = 78,442.56 × 17,219.20
  4. Step 4: Simplify right side
    52,288.96x = 1,350,718,129.15
  5. Step 5: Solve for x
    x = 1,350,718,129.15/52,288.96
  6. Step 6: Final answer
    x = 25,831.80

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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.