Home / 91,213.32-125,876.44-57,223.25

Finding the Fourth Proportional to 91,213.32, 125,876.44 and 57,223.25

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Solution

The fourth proportional to 91,213.32, 125,876.44 and 57,223.25 is: 78,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213.32 : 125,876.44 = 57,223.25 : x
  2. Step 2: Convert to fraction form
    91,213.32/125,876.44 = 57,223.25/x
  3. Step 3: Cross multiply
    91,213.32x = 125,876.44 × 57,223.25
  4. Step 4: Simplify right side
    91,213.32x = 7,203,058,995.23
  5. Step 5: Solve for x
    x = 7,203,058,995.23/91,213.32
  6. Step 6: Final answer
    x = 78,969.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.