Home / 71,428.33-98,572.42-39,160.82

Finding the Fourth Proportional to 71,428.33, 98,572.42 and 39,160.82

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Solution

The fourth proportional to 71,428.33, 98,572.42 and 39,160.82 is: 54,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.33 : 98,572.42 = 39,160.82 : x
  2. Step 2: Convert to fraction form
    71,428.33/98,572.42 = 39,160.82/x
  3. Step 3: Cross multiply
    71,428.33x = 98,572.42 × 39,160.82
  4. Step 4: Simplify right side
    71,428.33x = 3,860,176,427.36
  5. Step 5: Solve for x
    x = 3,860,176,427.36/71,428.33
  6. Step 6: Final answer
    x = 54,042.65

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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.