Home / 87,440.81-120,671.03-49,717.49

Finding the Fourth Proportional to 87,440.81, 120,671.03 and 49,717.49

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Solution

The fourth proportional to 87,440.81, 120,671.03 and 49,717.49 is: 68,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,440.81 : 120,671.03 = 49,717.49 : x
  2. Step 2: Convert to fraction form
    87,440.81/120,671.03 = 49,717.49/x
  3. Step 3: Cross multiply
    87,440.81x = 120,671.03 × 49,717.49
  4. Step 4: Simplify right side
    87,440.81x = 5,999,460,248.25
  5. Step 5: Solve for x
    x = 5,999,460,248.25/87,440.81
  6. Step 6: Final answer
    x = 68,611.68

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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.