Home / 78,534.31-117,799.93-22,374.79

Finding the Fourth Proportional to 78,534.31, 117,799.93 and 22,374.79

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Solution

The fourth proportional to 78,534.31, 117,799.93 and 22,374.79 is: 33,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534.31 : 117,799.93 = 22,374.79 : x
  2. Step 2: Convert to fraction form
    78,534.31/117,799.93 = 22,374.79/x
  3. Step 3: Cross multiply
    78,534.31x = 117,799.93 × 22,374.79
  4. Step 4: Simplify right side
    78,534.31x = 2,635,748,695.76
  5. Step 5: Solve for x
    x = 2,635,748,695.76/78,534.31
  6. Step 6: Final answer
    x = 33,561.75

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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.