Home / 85,045.85-127,514.10-35,145.80

Finding the Fourth Proportional to 85,045.85, 127,514.10 and 35,145.80

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Solution

The fourth proportional to 85,045.85, 127,514.10 and 35,145.80 is: 52,696.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,045.85 : 127,514.10 = 35,145.80 : x
  2. Step 2: Convert to fraction form
    85,045.85/127,514.10 = 35,145.80/x
  3. Step 3: Cross multiply
    85,045.85x = 127,514.10 × 35,145.80
  4. Step 4: Simplify right side
    85,045.85x = 4,481,585,055.78
  5. Step 5: Solve for x
    x = 4,481,585,055.78/85,045.85
  6. Step 6: Final answer
    x = 52,696.11

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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.