Home / 68,719.47-94,831.65-38,504.70

Finding the Fourth Proportional to 68,719.47, 94,831.65 and 38,504.70

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Solution

The fourth proportional to 68,719.47, 94,831.65 and 38,504.70 is: 53,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719.47 : 94,831.65 = 38,504.70 : x
  2. Step 2: Convert to fraction form
    68,719.47/94,831.65 = 38,504.70/x
  3. Step 3: Cross multiply
    68,719.47x = 94,831.65 × 38,504.70
  4. Step 4: Simplify right side
    68,719.47x = 3,651,464,233.76
  5. Step 5: Solve for x
    x = 3,651,464,233.76/68,719.47
  6. Step 6: Final answer
    x = 53,135.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.