Home / 87,740.28-121,096.62-50,013.72

Finding the Fourth Proportional to 87,740.28, 121,096.62 and 50,013.72

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Solution

The fourth proportional to 87,740.28, 121,096.62 and 50,013.72 is: 69,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.28 : 121,096.62 = 50,013.72 : x
  2. Step 2: Convert to fraction form
    87,740.28/121,096.62 = 50,013.72/x
  3. Step 3: Cross multiply
    87,740.28x = 121,096.62 × 50,013.72
  4. Step 4: Simplify right side
    87,740.28x = 6,056,492,445.63
  5. Step 5: Solve for x
    x = 6,056,492,445.63/87,740.28
  6. Step 6: Final answer
    x = 69,027.50

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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.