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Finding the Fourth Proportional to 79,656.23, 109,912.73 and 45,658.46

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Solution

The fourth proportional to 79,656.23, 109,912.73 and 45,658.46 is: 63,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,656.23 : 109,912.73 = 45,658.46 : x
  2. Step 2: Convert to fraction form
    79,656.23/109,912.73 = 45,658.46/x
  3. Step 3: Cross multiply
    79,656.23x = 109,912.73 × 45,658.46
  4. Step 4: Simplify right side
    79,656.23x = 5,018,445,671.26
  5. Step 5: Solve for x
    x = 5,018,445,671.26/79,656.23
  6. Step 6: Final answer
    x = 63,001.30

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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.