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Finding the Fourth Proportional to 63,309.83, 87,384.84 and 39,422.39

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Solution

The fourth proportional to 63,309.83, 87,384.84 and 39,422.39 is: 54,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,309.83 : 87,384.84 = 39,422.39 : x
  2. Step 2: Convert to fraction form
    63,309.83/87,384.84 = 39,422.39/x
  3. Step 3: Cross multiply
    63,309.83x = 87,384.84 × 39,422.39
  4. Step 4: Simplify right side
    63,309.83x = 3,444,919,242.57
  5. Step 5: Solve for x
    x = 3,444,919,242.57/63,309.83
  6. Step 6: Final answer
    x = 54,413.65

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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.