Home / 83,292.12-124,987.32-30,738.51

Finding the Fourth Proportional to 83,292.12, 124,987.32 and 30,738.51

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Solution

The fourth proportional to 83,292.12, 124,987.32 and 30,738.51 is: 46,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,292.12 : 124,987.32 = 30,738.51 : x
  2. Step 2: Convert to fraction form
    83,292.12/124,987.32 = 30,738.51/x
  3. Step 3: Cross multiply
    83,292.12x = 124,987.32 × 30,738.51
  4. Step 4: Simplify right side
    83,292.12x = 3,841,923,985.69
  5. Step 5: Solve for x
    x = 3,841,923,985.69/83,292.12
  6. Step 6: Final answer
    x = 46,125.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.