Home / 87,875.31-121,267.29-47,588.15

Finding the Fourth Proportional to 87,875.31, 121,267.29 and 47,588.15

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Solution

The fourth proportional to 87,875.31, 121,267.29 and 47,588.15 is: 65,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.31 : 121,267.29 = 47,588.15 : x
  2. Step 2: Convert to fraction form
    87,875.31/121,267.29 = 47,588.15/x
  3. Step 3: Cross multiply
    87,875.31x = 121,267.29 × 47,588.15
  4. Step 4: Simplify right side
    87,875.31x = 5,770,885,380.28
  5. Step 5: Solve for x
    x = 5,770,885,380.28/87,875.31
  6. Step 6: Final answer
    x = 65,671.29

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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.