Home / 87,847.16-121,228.90-47,560.95

Finding the Fourth Proportional to 87,847.16, 121,228.90 and 47,560.95

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Solution

The fourth proportional to 87,847.16, 121,228.90 and 47,560.95 is: 65,634.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.16 : 121,228.90 = 47,560.95 : x
  2. Step 2: Convert to fraction form
    87,847.16/121,228.90 = 47,560.95/x
  3. Step 3: Cross multiply
    87,847.16x = 121,228.90 × 47,560.95
  4. Step 4: Simplify right side
    87,847.16x = 5,765,761,459.13
  5. Step 5: Solve for x
    x = 5,765,761,459.13/87,847.16
  6. Step 6: Final answer
    x = 65,634.01

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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.