Home / 85,309.26-127,909.08-35,423.80

Finding the Fourth Proportional to 85,309.26, 127,909.08 and 35,423.80

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Solution

The fourth proportional to 85,309.26, 127,909.08 and 35,423.80 is: 53,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,309.26 : 127,909.08 = 35,423.80 : x
  2. Step 2: Convert to fraction form
    85,309.26/127,909.08 = 35,423.80/x
  3. Step 3: Cross multiply
    85,309.26x = 127,909.08 × 35,423.80
  4. Step 4: Simplify right side
    85,309.26x = 4,531,025,668.10
  5. Step 5: Solve for x
    x = 4,531,025,668.10/85,309.26
  6. Step 6: Final answer
    x = 53,112.94

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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.