Home / 87,887.10-121,284.51-47,600.76

Finding the Fourth Proportional to 87,887.10, 121,284.51 and 47,600.76

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Solution

The fourth proportional to 87,887.10, 121,284.51 and 47,600.76 is: 65,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,887.10 : 121,284.51 = 47,600.76 : x
  2. Step 2: Convert to fraction form
    87,887.10/121,284.51 = 47,600.76/x
  3. Step 3: Cross multiply
    87,887.10x = 121,284.51 × 47,600.76
  4. Step 4: Simplify right side
    87,887.10x = 5,773,234,852.23
  5. Step 5: Solve for x
    x = 5,773,234,852.23/87,887.10
  6. Step 6: Final answer
    x = 65,689.22

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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.