Home / 70,131.25-96,781.48-38,300.15

Finding the Fourth Proportional to 70,131.25, 96,781.48 and 38,300.15

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Solution

The fourth proportional to 70,131.25, 96,781.48 and 38,300.15 is: 52,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,131.25 : 96,781.48 = 38,300.15 : x
  2. Step 2: Convert to fraction form
    70,131.25/96,781.48 = 38,300.15/x
  3. Step 3: Cross multiply
    70,131.25x = 96,781.48 × 38,300.15
  4. Step 4: Simplify right side
    70,131.25x = 3,706,745,201.22
  5. Step 5: Solve for x
    x = 3,706,745,201.22/70,131.25
  6. Step 6: Final answer
    x = 52,854.40

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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.