Home / 87,863.84-121,252.15-47,577.76

Finding the Fourth Proportional to 87,863.84, 121,252.15 and 47,577.76

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Solution

The fourth proportional to 87,863.84, 121,252.15 and 47,577.76 is: 65,657.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.84 : 121,252.15 = 47,577.76 : x
  2. Step 2: Convert to fraction form
    87,863.84/121,252.15 = 47,577.76/x
  3. Step 3: Cross multiply
    87,863.84x = 121,252.15 × 47,577.76
  4. Step 4: Simplify right side
    87,863.84x = 5,768,905,407.52
  5. Step 5: Solve for x
    x = 5,768,905,407.52/87,863.84
  6. Step 6: Final answer
    x = 65,657.34

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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.