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Finding the Fourth Proportional to 52,778.80, 72,832.02 and 28,900.86

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Solution

The fourth proportional to 52,778.80, 72,832.02 and 28,900.86 is: 39,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,778.80 : 72,832.02 = 28,900.86 : x
  2. Step 2: Convert to fraction form
    52,778.80/72,832.02 = 28,900.86/x
  3. Step 3: Cross multiply
    52,778.80x = 72,832.02 × 28,900.86
  4. Step 4: Simplify right side
    52,778.80x = 2,104,908,013.54
  5. Step 5: Solve for x
    x = 2,104,908,013.54/52,778.80
  6. Step 6: Final answer
    x = 39,881.70

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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.