Home / 91,496.07-137,257.22-28,321.74

Finding the Fourth Proportional to 91,496.07, 137,257.22 and 28,321.74

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Solution

The fourth proportional to 91,496.07, 137,257.22 and 28,321.74 is: 42,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,496.07 : 137,257.22 = 28,321.74 : x
  2. Step 2: Convert to fraction form
    91,496.07/137,257.22 = 28,321.74/x
  3. Step 3: Cross multiply
    91,496.07x = 137,257.22 × 28,321.74
  4. Step 4: Simplify right side
    91,496.07x = 3,887,363,297.96
  5. Step 5: Solve for x
    x = 3,887,363,297.96/91,496.07
  6. Step 6: Final answer
    x = 42,486.67

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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.