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Finding the Fourth Proportional to 79,719.01, 110,008.07 and 49,503.68

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Solution

The fourth proportional to 79,719.01, 110,008.07 and 49,503.68 is: 68,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.01 : 110,008.07 = 49,503.68 : x
  2. Step 2: Convert to fraction form
    79,719.01/110,008.07 = 49,503.68/x
  3. Step 3: Cross multiply
    79,719.01x = 110,008.07 × 49,503.68
  4. Step 4: Simplify right side
    79,719.01x = 5,445,804,294.70
  5. Step 5: Solve for x
    x = 5,445,804,294.70/79,719.01
  6. Step 6: Final answer
    x = 68,312.49

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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.