Home / 65,856.20-90,881.55-35,641.73

Finding the Fourth Proportional to 65,856.20, 90,881.55 and 35,641.73

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Solution

The fourth proportional to 65,856.20, 90,881.55 and 35,641.73 is: 49,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,856.20 : 90,881.55 = 35,641.73 : x
  2. Step 2: Convert to fraction form
    65,856.20/90,881.55 = 35,641.73/x
  3. Step 3: Cross multiply
    65,856.20x = 90,881.55 × 35,641.73
  4. Step 4: Simplify right side
    65,856.20x = 3,239,175,894.29
  5. Step 5: Solve for x
    x = 3,239,175,894.29/65,856.20
  6. Step 6: Final answer
    x = 49,185.59

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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.