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Finding the Fourth Proportional to 51,333.60, 70,839.62 and 28,672.92

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Solution

The fourth proportional to 51,333.60, 70,839.62 and 28,672.92 is: 39,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,333.60 : 70,839.62 = 28,672.92 : x
  2. Step 2: Convert to fraction form
    51,333.60/70,839.62 = 28,672.92/x
  3. Step 3: Cross multiply
    51,333.60x = 70,839.62 × 28,672.92
  4. Step 4: Simplify right side
    51,333.60x = 2,031,178,259.53
  5. Step 5: Solve for x
    x = 2,031,178,259.53/51,333.60
  6. Step 6: Final answer
    x = 39,568.21

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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.