Home / 91,811.22-137,664.99-38,459.22

Finding the Fourth Proportional to 91,811.22, 137,664.99 and 38,459.22

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Solution

The fourth proportional to 91,811.22, 137,664.99 and 38,459.22 is: 57,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,811.22 : 137,664.99 = 38,459.22 : x
  2. Step 2: Convert to fraction form
    91,811.22/137,664.99 = 38,459.22/x
  3. Step 3: Cross multiply
    91,811.22x = 137,664.99 × 38,459.22
  4. Step 4: Simplify right side
    91,811.22x = 5,294,488,136.71
  5. Step 5: Solve for x
    x = 5,294,488,136.71/91,811.22
  6. Step 6: Final answer
    x = 57,667.11

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1.5x scale

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.