Home / 253,011.78-379,517.67-66,021.66

Finding the Fourth Proportional to 253,011.78, 379,517.67 and 66,021.66

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Solution

The fourth proportional to 253,011.78, 379,517.67 and 66,021.66 is: 99,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,011.78 : 379,517.67 = 66,021.66 : x
  2. Step 2: Convert to fraction form
    253,011.78/379,517.67 = 66,021.66/x
  3. Step 3: Cross multiply
    253,011.78x = 379,517.67 × 66,021.66
  4. Step 4: Simplify right side
    253,011.78x = 25,056,386,572.73
  5. Step 5: Solve for x
    x = 25,056,386,572.73/253,011.78
  6. Step 6: Final answer
    x = 99,032.49

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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.