Home / 87,886.50-121,283.16-47,600.28

Finding the Fourth Proportional to 87,886.50, 121,283.16 and 47,600.28

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Solution

The fourth proportional to 87,886.50, 121,283.16 and 47,600.28 is: 65,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.50 : 121,283.16 = 47,600.28 : x
  2. Step 2: Convert to fraction form
    87,886.50/121,283.16 = 47,600.28/x
  3. Step 3: Cross multiply
    87,886.50x = 121,283.16 × 47,600.28
  4. Step 4: Simplify right side
    87,886.50x = 5,773,112,375.28
  5. Step 5: Solve for x
    x = 5,773,112,375.28/87,886.50
  6. Step 6: Final answer
    x = 65,688.27

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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.