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Finding the Fourth Proportional to 52,760.67, 72,809.73 and 28,888.80

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Solution

The fourth proportional to 52,760.67, 72,809.73 and 28,888.80 is: 39,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,760.67 : 72,809.73 = 28,888.80 : x
  2. Step 2: Convert to fraction form
    52,760.67/72,809.73 = 28,888.80/x
  3. Step 3: Cross multiply
    52,760.67x = 72,809.73 × 28,888.80
  4. Step 4: Simplify right side
    52,760.67x = 2,103,385,728.02
  5. Step 5: Solve for x
    x = 2,103,385,728.02/52,760.67
  6. Step 6: Final answer
    x = 39,866.55

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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.