Home / 90,862.33-136,264.38-30,061.30

Finding the Fourth Proportional to 90,862.33, 136,264.38 and 30,061.30

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Solution

The fourth proportional to 90,862.33, 136,264.38 and 30,061.30 is: 45,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,862.33 : 136,264.38 = 30,061.30 : x
  2. Step 2: Convert to fraction form
    90,862.33/136,264.38 = 30,061.30/x
  3. Step 3: Cross multiply
    90,862.33x = 136,264.38 × 30,061.30
  4. Step 4: Simplify right side
    90,862.33x = 4,096,284,406.49
  5. Step 5: Solve for x
    x = 4,096,284,406.49/90,862.33
  6. Step 6: Final answer
    x = 45,082.32

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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.