Home / 91,008.20-136,514.32-31,036.60

Finding the Fourth Proportional to 91,008.20, 136,514.32 and 31,036.60

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Solution

The fourth proportional to 91,008.20, 136,514.32 and 31,036.60 is: 46,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,008.20 : 136,514.32 = 31,036.60 : x
  2. Step 2: Convert to fraction form
    91,008.20/136,514.32 = 31,036.60/x
  3. Step 3: Cross multiply
    91,008.20x = 136,514.32 × 31,036.60
  4. Step 4: Simplify right side
    91,008.20x = 4,236,940,344.11
  5. Step 5: Solve for x
    x = 4,236,940,344.11/91,008.20
  6. Step 6: Final answer
    x = 46,555.59

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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.