Home / 56,036.25-77,329.53-30,542.61

Finding the Fourth Proportional to 56,036.25, 77,329.53 and 30,542.61

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Solution

The fourth proportional to 56,036.25, 77,329.53 and 30,542.61 is: 42,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,036.25 : 77,329.53 = 30,542.61 : x
  2. Step 2: Convert to fraction form
    56,036.25/77,329.53 = 30,542.61/x
  3. Step 3: Cross multiply
    56,036.25x = 77,329.53 × 30,542.61
  4. Step 4: Simplify right side
    56,036.25x = 2,361,845,662.87
  5. Step 5: Solve for x
    x = 2,361,845,662.87/56,036.25
  6. Step 6: Final answer
    x = 42,148.53

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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.