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Finding the Fourth Proportional to 102,390.31, 153,574.55 and 35,831.71

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Solution

The fourth proportional to 102,390.31, 153,574.55 and 35,831.71 is: 53,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,390.31 : 153,574.55 = 35,831.71 : x
  2. Step 2: Convert to fraction form
    102,390.31/153,574.55 = 35,831.71/x
  3. Step 3: Cross multiply
    102,390.31x = 153,574.55 × 35,831.71
  4. Step 4: Simplify right side
    102,390.31x = 5,502,837,791.95
  5. Step 5: Solve for x
    x = 5,502,837,791.95/102,390.31
  6. Step 6: Final answer
    x = 53,743.74

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