Home / 85,327.85-127,980.54-25,355.05

Finding the Fourth Proportional to 85,327.85, 127,980.54 and 25,355.05

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Solution

The fourth proportional to 85,327.85, 127,980.54 and 25,355.05 is: 38,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,327.85 : 127,980.54 = 25,355.05 : x
  2. Step 2: Convert to fraction form
    85,327.85/127,980.54 = 25,355.05/x
  3. Step 3: Cross multiply
    85,327.85x = 127,980.54 × 25,355.05
  4. Step 4: Simplify right side
    85,327.85x = 3,244,952,670.78
  5. Step 5: Solve for x
    x = 3,244,952,670.78/85,327.85
  6. Step 6: Final answer
    x = 38,029.23

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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.