Home / 90,360.25-124,693.80-52,121.38

Finding the Fourth Proportional to 90,360.25, 124,693.80 and 52,121.38

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Solution

The fourth proportional to 90,360.25, 124,693.80 and 52,121.38 is: 71,925.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,360.25 : 124,693.80 = 52,121.38 : x
  2. Step 2: Convert to fraction form
    90,360.25/124,693.80 = 52,121.38/x
  3. Step 3: Cross multiply
    90,360.25x = 124,693.80 × 52,121.38
  4. Step 4: Simplify right side
    90,360.25x = 6,499,212,933.44
  5. Step 5: Solve for x
    x = 6,499,212,933.44/90,360.25
  6. Step 6: Final answer
    x = 71,925.57

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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.