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Finding the Fourth Proportional to 79,808.67, 110,057.05 and 67,742.10

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Solution

The fourth proportional to 79,808.67, 110,057.05 and 67,742.10 is: 93,417.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,808.67 : 110,057.05 = 67,742.10 : x
  2. Step 2: Convert to fraction form
    79,808.67/110,057.05 = 67,742.10/x
  3. Step 3: Cross multiply
    79,808.67x = 110,057.05 × 67,742.10
  4. Step 4: Simplify right side
    79,808.67x = 7,455,495,686.81
  5. Step 5: Solve for x
    x = 7,455,495,686.81/79,808.67
  6. Step 6: Final answer
    x = 93,417.11

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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.