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Finding the Fourth Proportional to 52,757.80, 72,807.02 and 28,884.40

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Solution

The fourth proportional to 52,757.80, 72,807.02 and 28,884.40 is: 39,861.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,757.80 : 72,807.02 = 28,884.40 : x
  2. Step 2: Convert to fraction form
    52,757.80/72,807.02 = 28,884.40/x
  3. Step 3: Cross multiply
    52,757.80x = 72,807.02 × 28,884.40
  4. Step 4: Simplify right side
    52,757.80x = 2,102,987,088.49
  5. Step 5: Solve for x
    x = 2,102,987,088.49/52,757.80
  6. Step 6: Final answer
    x = 39,861.16

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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.