Home / 90,811.29-136,211.40-43,460.04

Finding the Fourth Proportional to 90,811.29, 136,211.40 and 43,460.04

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Solution

The fourth proportional to 90,811.29, 136,211.40 and 43,460.04 is: 65,187.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.29 : 136,211.40 = 43,460.04 : x
  2. Step 2: Convert to fraction form
    90,811.29/136,211.40 = 43,460.04/x
  3. Step 3: Cross multiply
    90,811.29x = 136,211.40 × 43,460.04
  4. Step 4: Simplify right side
    90,811.29x = 5,919,752,892.46
  5. Step 5: Solve for x
    x = 5,919,752,892.46/90,811.29
  6. Step 6: Final answer
    x = 65,187.41

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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.