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Finding the Fourth Proportional to 101,247.42, 151,776.42 and 45,057

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Solution

The fourth proportional to 101,247.42, 151,776.42 and 45,057 is: 67,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,247.42 : 151,776.42 = 45,057 : x
  2. Step 2: Convert to fraction form
    101,247.42/151,776.42 = 45,057/x
  3. Step 3: Cross multiply
    101,247.42x = 151,776.42 × 45,057
  4. Step 4: Simplify right side
    101,247.42x = 6,838,590,155.94
  5. Step 5: Solve for x
    x = 6,838,590,155.94/101,247.42
  6. Step 6: Final answer
    x = 67,543.35

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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.