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Finding the Fourth Proportional to 52,621.60, 72,615.54 and 28,747.12

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Solution

The fourth proportional to 52,621.60, 72,615.54 and 28,747.12 is: 39,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.60 : 72,615.54 = 28,747.12 : x
  2. Step 2: Convert to fraction form
    52,621.60/72,615.54 = 28,747.12/x
  3. Step 3: Cross multiply
    52,621.60x = 72,615.54 × 28,747.12
  4. Step 4: Simplify right side
    52,621.60x = 2,087,487,642.24
  5. Step 5: Solve for x
    x = 2,087,487,642.24/52,621.60
  6. Step 6: Final answer
    x = 39,669.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.