Home / 85,336.32-128,029.08-26,180.70

Finding the Fourth Proportional to 85,336.32, 128,029.08 and 26,180.70

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Solution

The fourth proportional to 85,336.32, 128,029.08 and 26,180.70 is: 39,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,336.32 : 128,029.08 = 26,180.70 : x
  2. Step 2: Convert to fraction form
    85,336.32/128,029.08 = 26,180.70/x
  3. Step 3: Cross multiply
    85,336.32x = 128,029.08 × 26,180.70
  4. Step 4: Simplify right side
    85,336.32x = 3,351,890,934.76
  5. Step 5: Solve for x
    x = 3,351,890,934.76/85,336.32
  6. Step 6: Final answer
    x = 39,278.60

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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.