Home / 91,015.71-136,435.35-34,812.54

Finding the Fourth Proportional to 91,015.71, 136,435.35 and 34,812.54

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Solution

The fourth proportional to 91,015.71, 136,435.35 and 34,812.54 is: 52,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.71 : 136,435.35 = 34,812.54 : x
  2. Step 2: Convert to fraction form
    91,015.71/136,435.35 = 34,812.54/x
  3. Step 3: Cross multiply
    91,015.71x = 136,435.35 × 34,812.54
  4. Step 4: Simplify right side
    91,015.71x = 4,749,661,079.29
  5. Step 5: Solve for x
    x = 4,749,661,079.29/91,015.71
  6. Step 6: Final answer
    x = 52,185.07

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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.