Home / 91,806.77-137,716.83-38,445.08

Finding the Fourth Proportional to 91,806.77, 137,716.83 and 38,445.08

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Solution

The fourth proportional to 91,806.77, 137,716.83 and 38,445.08 is: 57,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,806.77 : 137,716.83 = 38,445.08 : x
  2. Step 2: Convert to fraction form
    91,806.77/137,716.83 = 38,445.08/x
  3. Step 3: Cross multiply
    91,806.77x = 137,716.83 × 38,445.08
  4. Step 4: Simplify right side
    91,806.77x = 5,294,534,546.70
  5. Step 5: Solve for x
    x = 5,294,534,546.70/91,806.77
  6. Step 6: Final answer
    x = 57,670.42

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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.