Home / 71,117.28-98,138.22-39,280.02

Finding the Fourth Proportional to 71,117.28, 98,138.22 and 39,280.02

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Solution

The fourth proportional to 71,117.28, 98,138.22 and 39,280.02 is: 54,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,117.28 : 98,138.22 = 39,280.02 : x
  2. Step 2: Convert to fraction form
    71,117.28/98,138.22 = 39,280.02/x
  3. Step 3: Cross multiply
    71,117.28x = 98,138.22 × 39,280.02
  4. Step 4: Simplify right side
    71,117.28x = 3,854,871,244.36
  5. Step 5: Solve for x
    x = 3,854,871,244.36/71,117.28
  6. Step 6: Final answer
    x = 54,204.42

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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.