Home / 87,886.95-121,283.69-47,600.61

Finding the Fourth Proportional to 87,886.95, 121,283.69 and 47,600.61

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Solution

The fourth proportional to 87,886.95, 121,283.69 and 47,600.61 is: 65,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.95 : 121,283.69 = 47,600.61 : x
  2. Step 2: Convert to fraction form
    87,886.95/121,283.69 = 47,600.61/x
  3. Step 3: Cross multiply
    87,886.95x = 121,283.69 × 47,600.61
  4. Step 4: Simplify right side
    87,886.95x = 5,773,177,627.05
  5. Step 5: Solve for x
    x = 5,773,177,627.05/87,886.95
  6. Step 6: Final answer
    x = 65,688.68

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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.