Home / 87,132.36-120,256.25-48,907.41

Finding the Fourth Proportional to 87,132.36, 120,256.25 and 48,907.41

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Solution

The fourth proportional to 87,132.36, 120,256.25 and 48,907.41 is: 67,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,132.36 : 120,256.25 = 48,907.41 : x
  2. Step 2: Convert to fraction form
    87,132.36/120,256.25 = 48,907.41/x
  3. Step 3: Cross multiply
    87,132.36x = 120,256.25 × 48,907.41
  4. Step 4: Simplify right side
    87,132.36x = 5,881,421,479.28
  5. Step 5: Solve for x
    x = 5,881,421,479.28/87,132.36
  6. Step 6: Final answer
    x = 67,499.85

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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.