Home / 87,877.36-121,279.44-50,157.28

Finding the Fourth Proportional to 87,877.36, 121,279.44 and 50,157.28

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Solution

The fourth proportional to 87,877.36, 121,279.44 and 50,157.28 is: 69,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.36 : 121,279.44 = 50,157.28 : x
  2. Step 2: Convert to fraction form
    87,877.36/121,279.44 = 50,157.28/x
  3. Step 3: Cross multiply
    87,877.36x = 121,279.44 × 50,157.28
  4. Step 4: Simplify right side
    87,877.36x = 6,083,046,830.32
  5. Step 5: Solve for x
    x = 6,083,046,830.32/87,877.36
  6. Step 6: Final answer
    x = 69,222.00

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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.