Home / 91,388.70-137,038.09-32,215.77

Finding the Fourth Proportional to 91,388.70, 137,038.09 and 32,215.77

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Solution

The fourth proportional to 91,388.70, 137,038.09 and 32,215.77 is: 48,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,388.70 : 137,038.09 = 32,215.77 : x
  2. Step 2: Convert to fraction form
    91,388.70/137,038.09 = 32,215.77/x
  3. Step 3: Cross multiply
    91,388.70x = 137,038.09 × 32,215.77
  4. Step 4: Simplify right side
    91,388.70x = 4,414,787,427.60
  5. Step 5: Solve for x
    x = 4,414,787,427.60/91,388.70
  6. Step 6: Final answer
    x = 48,307.80

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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.