Home / 85,454.03-128,179.35-25,523.09

Finding the Fourth Proportional to 85,454.03, 128,179.35 and 25,523.09

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Solution

The fourth proportional to 85,454.03, 128,179.35 and 25,523.09 is: 38,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,454.03 : 128,179.35 = 25,523.09 : x
  2. Step 2: Convert to fraction form
    85,454.03/128,179.35 = 25,523.09/x
  3. Step 3: Cross multiply
    85,454.03x = 128,179.35 × 25,523.09
  4. Step 4: Simplify right side
    85,454.03x = 3,271,532,925.97
  5. Step 5: Solve for x
    x = 3,271,532,925.97/85,454.03
  6. Step 6: Final answer
    x = 38,284.13

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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.