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Finding the Fourth Proportional to 97,806, 134,979.03 and 55,364.70

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Solution

The fourth proportional to 97,806, 134,979.03 and 55,364.70 is: 76,407.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,806 : 134,979.03 = 55,364.70 : x
  2. Step 2: Convert to fraction form
    97,806/134,979.03 = 55,364.70/x
  3. Step 3: Cross multiply
    97,806x = 134,979.03 × 55,364.70
  4. Step 4: Simplify right side
    97,806x = 7,473,073,502.24
  5. Step 5: Solve for x
    x = 7,473,073,502.24/97,806
  6. Step 6: Final answer
    x = 76,407.11

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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.