Home / 91,304.58-126,039.11-55,506.02

Finding the Fourth Proportional to 91,304.58, 126,039.11 and 55,506.02

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Solution

The fourth proportional to 91,304.58, 126,039.11 and 55,506.02 is: 76,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,304.58 : 126,039.11 = 55,506.02 : x
  2. Step 2: Convert to fraction form
    91,304.58/126,039.11 = 55,506.02/x
  3. Step 3: Cross multiply
    91,304.58x = 126,039.11 × 55,506.02
  4. Step 4: Simplify right side
    91,304.58x = 6,995,929,184.11
  5. Step 5: Solve for x
    x = 6,995,929,184.11/91,304.58
  6. Step 6: Final answer
    x = 76,621.89

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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.