Home / 99,956.09-137,941.36-54,632.81

Finding the Fourth Proportional to 99,956.09, 137,941.36 and 54,632.81

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Solution

The fourth proportional to 99,956.09, 137,941.36 and 54,632.81 is: 75,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,956.09 : 137,941.36 = 54,632.81 : x
  2. Step 2: Convert to fraction form
    99,956.09/137,941.36 = 54,632.81/x
  3. Step 3: Cross multiply
    99,956.09x = 137,941.36 × 54,632.81
  4. Step 4: Simplify right side
    99,956.09x = 7,536,124,112.02
  5. Step 5: Solve for x
    x = 7,536,124,112.02/99,956.09
  6. Step 6: Final answer
    x = 75,394.35

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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.