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Finding the Fourth Proportional to 78,888.42, 108,876.30 and 44,890.29

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Solution

The fourth proportional to 78,888.42, 108,876.30 and 44,890.29 is: 61,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888.42 : 108,876.30 = 44,890.29 : x
  2. Step 2: Convert to fraction form
    78,888.42/108,876.30 = 44,890.29/x
  3. Step 3: Cross multiply
    78,888.42x = 108,876.30 × 44,890.29
  4. Step 4: Simplify right side
    78,888.42x = 4,887,488,681.13
  5. Step 5: Solve for x
    x = 4,887,488,681.13/78,888.42
  6. Step 6: Final answer
    x = 61,954.45

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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.