Home / 91,942.24-137,955.48-54,576.40

Finding the Fourth Proportional to 91,942.24, 137,955.48 and 54,576.40

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Solution

The fourth proportional to 91,942.24, 137,955.48 and 54,576.40 is: 81,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,942.24 : 137,955.48 = 54,576.40 : x
  2. Step 2: Convert to fraction form
    91,942.24/137,955.48 = 54,576.40/x
  3. Step 3: Cross multiply
    91,942.24x = 137,955.48 × 54,576.40
  4. Step 4: Simplify right side
    91,942.24x = 7,529,113,458.67
  5. Step 5: Solve for x
    x = 7,529,113,458.67/91,942.24
  6. Step 6: Final answer
    x = 81,889.60

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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.