Home / 87,875.28-121,267.26-47,588.12

Finding the Fourth Proportional to 87,875.28, 121,267.26 and 47,588.12

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Solution

The fourth proportional to 87,875.28, 121,267.26 and 47,588.12 is: 65,671.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,875.28 : 121,267.26 = 47,588.12 : x
  2. Step 2: Convert to fraction form
    87,875.28/121,267.26 = 47,588.12/x
  3. Step 3: Cross multiply
    87,875.28x = 121,267.26 × 47,588.12
  4. Step 4: Simplify right side
    87,875.28x = 5,770,880,920.95
  5. Step 5: Solve for x
    x = 5,770,880,920.95/87,875.28
  6. Step 6: Final answer
    x = 65,671.27

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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.