Home / 90,974.40-136,500.72-34,831.44

Finding the Fourth Proportional to 90,974.40, 136,500.72 and 34,831.44

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Solution

The fourth proportional to 90,974.40, 136,500.72 and 34,831.44 is: 52,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,974.40 : 136,500.72 = 34,831.44 : x
  2. Step 2: Convert to fraction form
    90,974.40/136,500.72 = 34,831.44/x
  3. Step 3: Cross multiply
    90,974.40x = 136,500.72 × 34,831.44
  4. Step 4: Simplify right side
    90,974.40x = 4,754,516,638.64
  5. Step 5: Solve for x
    x = 4,754,516,638.64/90,974.40
  6. Step 6: Final answer
    x = 52,262.14

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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.