Home / 87,856.34-121,241.22-47,569.98

Finding the Fourth Proportional to 87,856.34, 121,241.22 and 47,569.98

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Solution

The fourth proportional to 87,856.34, 121,241.22 and 47,569.98 is: 65,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,856.34 : 121,241.22 = 47,569.98 : x
  2. Step 2: Convert to fraction form
    87,856.34/121,241.22 = 47,569.98/x
  3. Step 3: Cross multiply
    87,856.34x = 121,241.22 × 47,569.98
  4. Step 4: Simplify right side
    87,856.34x = 5,767,442,410.58
  5. Step 5: Solve for x
    x = 5,767,442,410.58/87,856.34
  6. Step 6: Final answer
    x = 65,646.29

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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.