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Finding the Fourth Proportional to 78,326.79, 117,490.19 and 22,922.79

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Solution

The fourth proportional to 78,326.79, 117,490.19 and 22,922.79 is: 34,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,326.79 : 117,490.19 = 22,922.79 : x
  2. Step 2: Convert to fraction form
    78,326.79/117,490.19 = 22,922.79/x
  3. Step 3: Cross multiply
    78,326.79x = 117,490.19 × 22,922.79
  4. Step 4: Simplify right side
    78,326.79x = 2,693,202,837.82
  5. Step 5: Solve for x
    x = 2,693,202,837.82/78,326.79
  6. Step 6: Final answer
    x = 34,384.19

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1.5x scale

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.