Home / 91,831.21-137,693.30-35,605.64

Finding the Fourth Proportional to 91,831.21, 137,693.30 and 35,605.64

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Solution

The fourth proportional to 91,831.21, 137,693.30 and 35,605.64 is: 53,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.21 : 137,693.30 = 35,605.64 : x
  2. Step 2: Convert to fraction form
    91,831.21/137,693.30 = 35,605.64/x
  3. Step 3: Cross multiply
    91,831.21x = 137,693.30 × 35,605.64
  4. Step 4: Simplify right side
    91,831.21x = 4,902,657,940.31
  5. Step 5: Solve for x
    x = 4,902,657,940.31/91,831.21
  6. Step 6: Final answer
    x = 53,387.71

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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.