Home / 78,831.38-118,267.07-22,670.28

Finding the Fourth Proportional to 78,831.38, 118,267.07 and 22,670.28

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Solution

The fourth proportional to 78,831.38, 118,267.07 and 22,670.28 is: 34,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,831.38 : 118,267.07 = 22,670.28 : x
  2. Step 2: Convert to fraction form
    78,831.38/118,267.07 = 22,670.28/x
  3. Step 3: Cross multiply
    78,831.38x = 118,267.07 × 22,670.28
  4. Step 4: Simplify right side
    78,831.38x = 2,681,147,478.33
  5. Step 5: Solve for x
    x = 2,681,147,478.33/78,831.38
  6. Step 6: Final answer
    x = 34,011.17

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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.