Home / 91,541.72-137,364.48-49,421.24

Finding the Fourth Proportional to 91,541.72, 137,364.48 and 49,421.24

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Solution

The fourth proportional to 91,541.72, 137,364.48 and 49,421.24 is: 74,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,541.72 : 137,364.48 = 49,421.24 : x
  2. Step 2: Convert to fraction form
    91,541.72/137,364.48 = 49,421.24/x
  3. Step 3: Cross multiply
    91,541.72x = 137,364.48 × 49,421.24
  4. Step 4: Simplify right side
    91,541.72x = 6,788,722,933.56
  5. Step 5: Solve for x
    x = 6,788,722,933.56/91,541.72
  6. Step 6: Final answer
    x = 74,159.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.