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Finding the Fourth Proportional to 52,642.64, 72,644.64 and 28,769.24

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Solution

The fourth proportional to 52,642.64, 72,644.64 and 28,769.24 is: 39,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,642.64 : 72,644.64 = 28,769.24 : x
  2. Step 2: Convert to fraction form
    52,642.64/72,644.64 = 28,769.24/x
  3. Step 3: Cross multiply
    52,642.64x = 72,644.64 × 28,769.24
  4. Step 4: Simplify right side
    52,642.64x = 2,089,931,082.87
  5. Step 5: Solve for x
    x = 2,089,931,082.87/52,642.64
  6. Step 6: Final answer
    x = 39,700.35

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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.