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Finding the Fourth Proportional to 84,793.83, 127,193.45 and 42,650.89

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Solution

The fourth proportional to 84,793.83, 127,193.45 and 42,650.89 is: 63,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,793.83 : 127,193.45 = 42,650.89 : x
  2. Step 2: Convert to fraction form
    84,793.83/127,193.45 = 42,650.89/x
  3. Step 3: Cross multiply
    84,793.83x = 127,193.45 × 42,650.89
  4. Step 4: Simplify right side
    84,793.83x = 5,424,913,844.67
  5. Step 5: Solve for x
    x = 5,424,913,844.67/84,793.83
  6. Step 6: Final answer
    x = 63,977.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.