Home / 99,278.21-137,004.83-53,956.31

Finding the Fourth Proportional to 99,278.21, 137,004.83 and 53,956.31

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Solution

The fourth proportional to 99,278.21, 137,004.83 and 53,956.31 is: 74,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278.21 : 137,004.83 = 53,956.31 : x
  2. Step 2: Convert to fraction form
    99,278.21/137,004.83 = 53,956.31/x
  3. Step 3: Cross multiply
    99,278.21x = 137,004.83 × 53,956.31
  4. Step 4: Simplify right side
    99,278.21x = 7,392,275,042.61
  5. Step 5: Solve for x
    x = 7,392,275,042.61/99,278.21
  6. Step 6: Final answer
    x = 74,460.20

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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.