Home / 87,828.48-121,157.64-53,844.96

Finding the Fourth Proportional to 87,828.48, 121,157.64 and 53,844.96

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Solution

The fourth proportional to 87,828.48, 121,157.64 and 53,844.96 is: 74,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.48 : 121,157.64 = 53,844.96 : x
  2. Step 2: Convert to fraction form
    87,828.48/121,157.64 = 53,844.96/x
  3. Step 3: Cross multiply
    87,828.48x = 121,157.64 × 53,844.96
  4. Step 4: Simplify right side
    87,828.48x = 6,523,728,279.49
  5. Step 5: Solve for x
    x = 6,523,728,279.49/87,828.48
  6. Step 6: Final answer
    x = 74,278.05

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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.