Home / 71,657.96-98,876.94-39,826.76

Finding the Fourth Proportional to 71,657.96, 98,876.94 and 39,826.76

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Solution

The fourth proportional to 71,657.96, 98,876.94 and 39,826.76 is: 54,954.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.96 : 98,876.94 = 39,826.76 : x
  2. Step 2: Convert to fraction form
    71,657.96/98,876.94 = 39,826.76/x
  3. Step 3: Cross multiply
    71,657.96x = 98,876.94 × 39,826.76
  4. Step 4: Simplify right side
    71,657.96x = 3,937,948,158.91
  5. Step 5: Solve for x
    x = 3,937,948,158.91/71,657.96
  6. Step 6: Final answer
    x = 54,954.79

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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.