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Finding the Fourth Proportional to 74,402.88, 102,569.76 and 53,174.40

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Solution

The fourth proportional to 74,402.88, 102,569.76 and 53,174.40 is: 73,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,402.88 : 102,569.76 = 53,174.40 : x
  2. Step 2: Convert to fraction form
    74,402.88/102,569.76 = 53,174.40/x
  3. Step 3: Cross multiply
    74,402.88x = 102,569.76 × 53,174.40
  4. Step 4: Simplify right side
    74,402.88x = 5,454,085,446.14
  5. Step 5: Solve for x
    x = 5,454,085,446.14/74,402.88
  6. Step 6: Final answer
    x = 73,304.76

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1.5x scale

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.