Home / 85,321.23-127,719.33-55,675.23

Finding the Fourth Proportional to 85,321.23, 127,719.33 and 55,675.23

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Solution

The fourth proportional to 85,321.23, 127,719.33 and 55,675.23 is: 83,341.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,321.23 : 127,719.33 = 55,675.23 : x
  2. Step 2: Convert to fraction form
    85,321.23/127,719.33 = 55,675.23/x
  3. Step 3: Cross multiply
    85,321.23x = 127,719.33 × 55,675.23
  4. Step 4: Simplify right side
    85,321.23x = 7,110,803,073.20
  5. Step 5: Solve for x
    x = 7,110,803,073.20/85,321.23
  6. Step 6: Final answer
    x = 83,341.54

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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.