Home / 87,856.53-121,241.83-47,570.33

Finding the Fourth Proportional to 87,856.53, 121,241.83 and 47,570.33

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Solution

The fourth proportional to 87,856.53, 121,241.83 and 47,570.33 is: 65,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,856.53 : 121,241.83 = 47,570.33 : x
  2. Step 2: Convert to fraction form
    87,856.53/121,241.83 = 47,570.33/x
  3. Step 3: Cross multiply
    87,856.53x = 121,241.83 × 47,570.33
  4. Step 4: Simplify right side
    87,856.53x = 5,767,513,862.90
  5. Step 5: Solve for x
    x = 5,767,513,862.90/87,856.53
  6. Step 6: Final answer
    x = 65,646.96

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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.