Home / 66,013.83-99,023.85-21,039.66

Finding the Fourth Proportional to 66,013.83, 99,023.85 and 21,039.66

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Solution

The fourth proportional to 66,013.83, 99,023.85 and 21,039.66 is: 31,560.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,013.83 : 99,023.85 = 21,039.66 : x
  2. Step 2: Convert to fraction form
    66,013.83/99,023.85 = 21,039.66/x
  3. Step 3: Cross multiply
    66,013.83x = 99,023.85 × 21,039.66
  4. Step 4: Simplify right side
    66,013.83x = 2,083,428,135.89
  5. Step 5: Solve for x
    x = 2,083,428,135.89/66,013.83
  6. Step 6: Final answer
    x = 31,560.48

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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.