Home / 71,867.74-99,180.54-40,036.63

Finding the Fourth Proportional to 71,867.74, 99,180.54 and 40,036.63

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Solution

The fourth proportional to 71,867.74, 99,180.54 and 40,036.63 is: 55,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,867.74 : 99,180.54 = 40,036.63 : x
  2. Step 2: Convert to fraction form
    71,867.74/99,180.54 = 40,036.63/x
  3. Step 3: Cross multiply
    71,867.74x = 99,180.54 × 40,036.63
  4. Step 4: Simplify right side
    71,867.74x = 3,970,854,583.18
  5. Step 5: Solve for x
    x = 3,970,854,583.18/71,867.74
  6. Step 6: Final answer
    x = 55,252.25

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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.