Home / 86,973.75-120,023.78-49,255.29

Finding the Fourth Proportional to 86,973.75, 120,023.78 and 49,255.29

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Solution

The fourth proportional to 86,973.75, 120,023.78 and 49,255.29 is: 67,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,973.75 : 120,023.78 = 49,255.29 : x
  2. Step 2: Convert to fraction form
    86,973.75/120,023.78 = 49,255.29/x
  3. Step 3: Cross multiply
    86,973.75x = 120,023.78 × 49,255.29
  4. Step 4: Simplify right side
    86,973.75x = 5,911,805,844.52
  5. Step 5: Solve for x
    x = 5,911,805,844.52/86,973.75
  6. Step 6: Final answer
    x = 67,972.30

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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.