Home / 85,844.68-128,734.65-35,928.23

Finding the Fourth Proportional to 85,844.68, 128,734.65 and 35,928.23

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Solution

The fourth proportional to 85,844.68, 128,734.65 and 35,928.23 is: 53,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,844.68 : 128,734.65 = 35,928.23 : x
  2. Step 2: Convert to fraction form
    85,844.68/128,734.65 = 35,928.23/x
  3. Step 3: Cross multiply
    85,844.68x = 128,734.65 × 35,928.23
  4. Step 4: Simplify right side
    85,844.68x = 4,625,207,470.50
  5. Step 5: Solve for x
    x = 4,625,207,470.50/85,844.68
  6. Step 6: Final answer
    x = 53,878.79

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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.