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Finding the Fourth Proportional to 63,673.72, 87,870.26 and 39,814.22

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Solution

The fourth proportional to 63,673.72, 87,870.26 and 39,814.22 is: 54,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,673.72 : 87,870.26 = 39,814.22 : x
  2. Step 2: Convert to fraction form
    63,673.72/87,870.26 = 39,814.22/x
  3. Step 3: Cross multiply
    63,673.72x = 87,870.26 × 39,814.22
  4. Step 4: Simplify right side
    63,673.72x = 3,498,486,182.31
  5. Step 5: Solve for x
    x = 3,498,486,182.31/63,673.72
  6. Step 6: Final answer
    x = 54,943.96

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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.