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Finding the Fourth Proportional to 78,751.44, 108,676.44 and 42,941.52

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Solution

The fourth proportional to 78,751.44, 108,676.44 and 42,941.52 is: 59,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,751.44 : 108,676.44 = 42,941.52 : x
  2. Step 2: Convert to fraction form
    78,751.44/108,676.44 = 42,941.52/x
  3. Step 3: Cross multiply
    78,751.44x = 108,676.44 × 42,941.52
  4. Step 4: Simplify right side
    78,751.44x = 4,666,731,521.79
  5. Step 5: Solve for x
    x = 4,666,731,521.79/78,751.44
  6. Step 6: Final answer
    x = 59,259.00

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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.