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Finding the Fourth Proportional to 91,404.84, 137,155.07 and 37,409.60

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Solution

The fourth proportional to 91,404.84, 137,155.07 and 37,409.60 is: 56,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,404.84 : 137,155.07 = 37,409.60 : x
  2. Step 2: Convert to fraction form
    91,404.84/137,155.07 = 37,409.60/x
  3. Step 3: Cross multiply
    91,404.84x = 137,155.07 × 37,409.60
  4. Step 4: Simplify right side
    91,404.84x = 5,130,916,119.62
  5. Step 5: Solve for x
    x = 5,130,916,119.62/91,404.84
  6. Step 6: Final answer
    x = 56,133.97

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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.