Home / 63,126.21-87,158.21-39,263.61

Finding the Fourth Proportional to 63,126.21, 87,158.21 and 39,263.61

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Solution

The fourth proportional to 63,126.21, 87,158.21 and 39,263.61 is: 54,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,126.21 : 87,158.21 = 39,263.61 : x
  2. Step 2: Convert to fraction form
    63,126.21/87,158.21 = 39,263.61/x
  3. Step 3: Cross multiply
    63,126.21x = 87,158.21 × 39,263.61
  4. Step 4: Simplify right side
    63,126.21x = 3,422,145,965.74
  5. Step 5: Solve for x
    x = 3,422,145,965.74/63,126.21
  6. Step 6: Final answer
    x = 54,211.17

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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.