Home / 71,102.16-98,118.90-39,270.36

Finding the Fourth Proportional to 71,102.16, 98,118.90 and 39,270.36

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Solution

The fourth proportional to 71,102.16, 98,118.90 and 39,270.36 is: 54,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,102.16 : 98,118.90 = 39,270.36 : x
  2. Step 2: Convert to fraction form
    71,102.16/98,118.90 = 39,270.36/x
  3. Step 3: Cross multiply
    71,102.16x = 98,118.90 × 39,270.36
  4. Step 4: Simplify right side
    71,102.16x = 3,853,164,525.80
  5. Step 5: Solve for x
    x = 3,853,164,525.80/71,102.16
  6. Step 6: Final answer
    x = 54,191.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.