Home / 87,710.75-121,040.98-47,424.54

Finding the Fourth Proportional to 87,710.75, 121,040.98 and 47,424.54

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Solution

The fourth proportional to 87,710.75, 121,040.98 and 47,424.54 is: 65,445.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710.75 : 121,040.98 = 47,424.54 : x
  2. Step 2: Convert to fraction form
    87,710.75/121,040.98 = 47,424.54/x
  3. Step 3: Cross multiply
    87,710.75x = 121,040.98 × 47,424.54
  4. Step 4: Simplify right side
    87,710.75x = 5,740,312,718.90
  5. Step 5: Solve for x
    x = 5,740,312,718.90/87,710.75
  6. Step 6: Final answer
    x = 65,445.94

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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.