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Finding the Fourth Proportional to 72,980.38, 109,470.57 and 17,576.38

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Solution

The fourth proportional to 72,980.38, 109,470.57 and 17,576.38 is: 26,364.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,980.38 : 109,470.57 = 17,576.38 : x
  2. Step 2: Convert to fraction form
    72,980.38/109,470.57 = 17,576.38/x
  3. Step 3: Cross multiply
    72,980.38x = 109,470.57 × 17,576.38
  4. Step 4: Simplify right side
    72,980.38x = 1,924,096,337.14
  5. Step 5: Solve for x
    x = 1,924,096,337.14/72,980.38
  6. Step 6: Final answer
    x = 26,364.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.