Home / 71,557.48-98,740.92-39,718.54

Finding the Fourth Proportional to 71,557.48, 98,740.92 and 39,718.54

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Solution

The fourth proportional to 71,557.48, 98,740.92 and 39,718.54 is: 54,806.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,557.48 : 98,740.92 = 39,718.54 : x
  2. Step 2: Convert to fraction form
    71,557.48/98,740.92 = 39,718.54/x
  3. Step 3: Cross multiply
    71,557.48x = 98,740.92 × 39,718.54
  4. Step 4: Simplify right side
    71,557.48x = 3,921,845,180.66
  5. Step 5: Solve for x
    x = 3,921,845,180.66/71,557.48
  6. Step 6: Final answer
    x = 54,806.92

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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.