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Finding the Fourth Proportional to 115,325.10, 172,972.80 and 36,447.30

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Solution

The fourth proportional to 115,325.10, 172,972.80 and 36,447.30 is: 54,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,325.10 : 172,972.80 = 36,447.30 : x
  2. Step 2: Convert to fraction form
    115,325.10/172,972.80 = 36,447.30/x
  3. Step 3: Cross multiply
    115,325.10x = 172,972.80 × 36,447.30
  4. Step 4: Simplify right side
    115,325.10x = 6,304,391,533.44
  5. Step 5: Solve for x
    x = 6,304,391,533.44/115,325.10
  6. Step 6: Final answer
    x = 54,666.26

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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.