Home / 71,977.07-107,919.35-29,886.21

Finding the Fourth Proportional to 71,977.07, 107,919.35 and 29,886.21

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Solution

The fourth proportional to 71,977.07, 107,919.35 and 29,886.21 is: 44,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,977.07 : 107,919.35 = 29,886.21 : x
  2. Step 2: Convert to fraction form
    71,977.07/107,919.35 = 29,886.21/x
  3. Step 3: Cross multiply
    71,977.07x = 107,919.35 × 29,886.21
  4. Step 4: Simplify right side
    71,977.07x = 3,225,300,207.73
  5. Step 5: Solve for x
    x = 3,225,300,207.73/71,977.07
  6. Step 6: Final answer
    x = 44,810.11

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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.