Home / 63,140.28-87,134.04-34,459.68

Finding the Fourth Proportional to 63,140.28, 87,134.04 and 34,459.68

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Solution

The fourth proportional to 63,140.28, 87,134.04 and 34,459.68 is: 47,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,140.28 : 87,134.04 = 34,459.68 : x
  2. Step 2: Convert to fraction form
    63,140.28/87,134.04 = 34,459.68/x
  3. Step 3: Cross multiply
    63,140.28x = 87,134.04 × 34,459.68
  4. Step 4: Simplify right side
    63,140.28x = 3,002,611,135.51
  5. Step 5: Solve for x
    x = 3,002,611,135.51/63,140.28
  6. Step 6: Final answer
    x = 47,554.61

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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.