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Finding the Fourth Proportional to 91,365.84, 137,014.20 and 38,800.08

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Solution

The fourth proportional to 91,365.84, 137,014.20 and 38,800.08 is: 58,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,365.84 : 137,014.20 = 38,800.08 : x
  2. Step 2: Convert to fraction form
    91,365.84/137,014.20 = 38,800.08/x
  3. Step 3: Cross multiply
    91,365.84x = 137,014.20 × 38,800.08
  4. Step 4: Simplify right side
    91,365.84x = 5,316,161,921.14
  5. Step 5: Solve for x
    x = 5,316,161,921.14/91,365.84
  6. Step 6: Final answer
    x = 58,185.44

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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.