Home / 99,278.57-137,004.43-53,956.66

Finding the Fourth Proportional to 99,278.57, 137,004.43 and 53,956.66

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Solution

The fourth proportional to 99,278.57, 137,004.43 and 53,956.66 is: 74,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278.57 : 137,004.43 = 53,956.66 : x
  2. Step 2: Convert to fraction form
    99,278.57/137,004.43 = 53,956.66/x
  3. Step 3: Cross multiply
    99,278.57x = 137,004.43 × 53,956.66
  4. Step 4: Simplify right side
    99,278.57x = 7,392,301,448.00
  5. Step 5: Solve for x
    x = 7,392,301,448.00/99,278.57
  6. Step 6: Final answer
    x = 74,460.19

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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.