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Finding the Fourth Proportional to 94,659.89, 130,631.02 and 51,640.30

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Solution

The fourth proportional to 94,659.89, 130,631.02 and 51,640.30 is: 71,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,659.89 : 130,631.02 = 51,640.30 : x
  2. Step 2: Convert to fraction form
    94,659.89/130,631.02 = 51,640.30/x
  3. Step 3: Cross multiply
    94,659.89x = 130,631.02 × 51,640.30
  4. Step 4: Simplify right side
    94,659.89x = 6,745,825,062.11
  5. Step 5: Solve for x
    x = 6,745,825,062.11/94,659.89
  6. Step 6: Final answer
    x = 71,263.82

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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.