Home / 65,410.05-98,105.85-21,031.17

Finding the Fourth Proportional to 65,410.05, 98,105.85 and 21,031.17

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Solution

The fourth proportional to 65,410.05, 98,105.85 and 21,031.17 is: 31,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,410.05 : 98,105.85 = 21,031.17 : x
  2. Step 2: Convert to fraction form
    65,410.05/98,105.85 = 21,031.17/x
  3. Step 3: Cross multiply
    65,410.05x = 98,105.85 × 21,031.17
  4. Step 4: Simplify right side
    65,410.05x = 2,063,280,809.34
  5. Step 5: Solve for x
    x = 2,063,280,809.34/65,410.05
  6. Step 6: Final answer
    x = 31,543.79

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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.