Home / 52,831.47-79,247.30-13,388.55

Finding the Fourth Proportional to 52,831.47, 79,247.30 and 13,388.55

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Solution

The fourth proportional to 52,831.47, 79,247.30 and 13,388.55 is: 20,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,831.47 : 79,247.30 = 13,388.55 : x
  2. Step 2: Convert to fraction form
    52,831.47/79,247.30 = 13,388.55/x
  3. Step 3: Cross multiply
    52,831.47x = 79,247.30 × 13,388.55
  4. Step 4: Simplify right side
    52,831.47x = 1,061,006,371.47
  5. Step 5: Solve for x
    x = 1,061,006,371.47/52,831.47
  6. Step 6: Final answer
    x = 20,082.85

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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.