Home / 85,242.13-127,858.54-26,077.79

Finding the Fourth Proportional to 85,242.13, 127,858.54 and 26,077.79

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Solution

The fourth proportional to 85,242.13, 127,858.54 and 26,077.79 is: 39,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.13 : 127,858.54 = 26,077.79 : x
  2. Step 2: Convert to fraction form
    85,242.13/127,858.54 = 26,077.79/x
  3. Step 3: Cross multiply
    85,242.13x = 127,858.54 × 26,077.79
  4. Step 4: Simplify right side
    85,242.13x = 3,334,268,410.28
  5. Step 5: Solve for x
    x = 3,334,268,410.28/85,242.13
  6. Step 6: Final answer
    x = 39,115.27

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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.