Home / 91,210.34-136,831.91-38,623.92

Finding the Fourth Proportional to 91,210.34, 136,831.91 and 38,623.92

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Solution

The fourth proportional to 91,210.34, 136,831.91 and 38,623.92 is: 57,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,210.34 : 136,831.91 = 38,623.92 : x
  2. Step 2: Convert to fraction form
    91,210.34/136,831.91 = 38,623.92/x
  3. Step 3: Cross multiply
    91,210.34x = 136,831.91 × 38,623.92
  4. Step 4: Simplify right side
    91,210.34x = 5,284,984,552.17
  5. Step 5: Solve for x
    x = 5,284,984,552.17/91,210.34
  6. Step 6: Final answer
    x = 57,942.83

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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.