Home / 71,175.51-98,219.15-38,909.53

Finding the Fourth Proportional to 71,175.51, 98,219.15 and 38,909.53

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Solution

The fourth proportional to 71,175.51, 98,219.15 and 38,909.53 is: 53,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.51 : 98,219.15 = 38,909.53 : x
  2. Step 2: Convert to fraction form
    71,175.51/98,219.15 = 38,909.53/x
  3. Step 3: Cross multiply
    71,175.51x = 98,219.15 × 38,909.53
  4. Step 4: Simplify right side
    71,175.51x = 3,821,660,768.95
  5. Step 5: Solve for x
    x = 3,821,660,768.95/71,175.51
  6. Step 6: Final answer
    x = 53,693.48

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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.