Home / 60,581.22-90,865.34-21,139.08

Finding the Fourth Proportional to 60,581.22, 90,865.34 and 21,139.08

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Solution

The fourth proportional to 60,581.22, 90,865.34 and 21,139.08 is: 31,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,581.22 : 90,865.34 = 21,139.08 : x
  2. Step 2: Convert to fraction form
    60,581.22/90,865.34 = 21,139.08/x
  3. Step 3: Cross multiply
    60,581.22x = 90,865.34 × 21,139.08
  4. Step 4: Simplify right side
    60,581.22x = 1,920,809,691.49
  5. Step 5: Solve for x
    x = 1,920,809,691.49/60,581.22
  6. Step 6: Final answer
    x = 31,706.36

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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.