Home / 71,088.68-98,102.30-39,257.50

Finding the Fourth Proportional to 71,088.68, 98,102.30 and 39,257.50

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Solution

The fourth proportional to 71,088.68, 98,102.30 and 39,257.50 is: 54,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,088.68 : 98,102.30 = 39,257.50 : x
  2. Step 2: Convert to fraction form
    71,088.68/98,102.30 = 39,257.50/x
  3. Step 3: Cross multiply
    71,088.68x = 98,102.30 × 39,257.50
  4. Step 4: Simplify right side
    71,088.68x = 3,851,251,042.25
  5. Step 5: Solve for x
    x = 3,851,251,042.25/71,088.68
  6. Step 6: Final answer
    x = 54,175.31

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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.