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Finding the Fourth Proportional to 79,189.65, 109,283.48 and 45,197.46

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Solution

The fourth proportional to 79,189.65, 109,283.48 and 45,197.46 is: 62,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.65 : 109,283.48 = 45,197.46 : x
  2. Step 2: Convert to fraction form
    79,189.65/109,283.48 = 45,197.46/x
  3. Step 3: Cross multiply
    79,189.65x = 109,283.48 × 45,197.46
  4. Step 4: Simplify right side
    79,189.65x = 4,939,335,715.96
  5. Step 5: Solve for x
    x = 4,939,335,715.96/79,189.65
  6. Step 6: Final answer
    x = 62,373.50

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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.