Home / 91,458.98-137,099.23-38,166.31

Finding the Fourth Proportional to 91,458.98, 137,099.23 and 38,166.31

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Solution

The fourth proportional to 91,458.98, 137,099.23 and 38,166.31 is: 57,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,458.98 : 137,099.23 = 38,166.31 : x
  2. Step 2: Convert to fraction form
    91,458.98/137,099.23 = 38,166.31/x
  3. Step 3: Cross multiply
    91,458.98x = 137,099.23 × 38,166.31
  4. Step 4: Simplify right side
    91,458.98x = 5,232,571,274.78
  5. Step 5: Solve for x
    x = 5,232,571,274.78/91,458.98
  6. Step 6: Final answer
    x = 57,212.22

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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.