Home / 65,484.32-98,240.13-21,115.55

Finding the Fourth Proportional to 65,484.32, 98,240.13 and 21,115.55

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Solution

The fourth proportional to 65,484.32, 98,240.13 and 21,115.55 is: 31,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.32 : 98,240.13 = 21,115.55 : x
  2. Step 2: Convert to fraction form
    65,484.32/98,240.13 = 21,115.55/x
  3. Step 3: Cross multiply
    65,484.32x = 98,240.13 × 21,115.55
  4. Step 4: Simplify right side
    65,484.32x = 2,074,394,377.02
  5. Step 5: Solve for x
    x = 2,074,394,377.02/65,484.32
  6. Step 6: Final answer
    x = 31,677.73

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1.5x scale

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.