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Finding the Fourth Proportional to 52,555, 72,527.43 and 28,683.20

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Solution

The fourth proportional to 52,555, 72,527.43 and 28,683.20 is: 39,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,555 : 72,527.43 = 28,683.20 : x
  2. Step 2: Convert to fraction form
    52,555/72,527.43 = 28,683.20/x
  3. Step 3: Cross multiply
    52,555x = 72,527.43 × 28,683.20
  4. Step 4: Simplify right side
    52,555x = 2,080,318,780.18
  5. Step 5: Solve for x
    x = 2,080,318,780.18/52,555
  6. Step 6: Final answer
    x = 39,583.65

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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.