Home / 85,213.76-127,810.56-22,879.36

Finding the Fourth Proportional to 85,213.76, 127,810.56 and 22,879.36

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Solution

The fourth proportional to 85,213.76, 127,810.56 and 22,879.36 is: 34,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213.76 : 127,810.56 = 22,879.36 : x
  2. Step 2: Convert to fraction form
    85,213.76/127,810.56 = 22,879.36/x
  3. Step 3: Cross multiply
    85,213.76x = 127,810.56 × 22,879.36
  4. Step 4: Simplify right side
    85,213.76x = 2,924,223,814.04
  5. Step 5: Solve for x
    x = 2,924,223,814.04/85,213.76
  6. Step 6: Final answer
    x = 34,316.33

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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.