Home / 71,208.29-98,268.09-39,377.72

Finding the Fourth Proportional to 71,208.29, 98,268.09 and 39,377.72

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Solution

The fourth proportional to 71,208.29, 98,268.09 and 39,377.72 is: 54,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.29 : 98,268.09 = 39,377.72 : x
  2. Step 2: Convert to fraction form
    71,208.29/98,268.09 = 39,377.72/x
  3. Step 3: Cross multiply
    71,208.29x = 98,268.09 × 39,377.72
  4. Step 4: Simplify right side
    71,208.29x = 3,869,572,841.61
  5. Step 5: Solve for x
    x = 3,869,572,841.61/71,208.29
  6. Step 6: Final answer
    x = 54,341.61

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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.