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Finding the Fourth Proportional to 69,831.02, 96,368.98 and 39,617.61

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Solution

The fourth proportional to 69,831.02, 96,368.98 and 39,617.61 is: 54,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,831.02 : 96,368.98 = 39,617.61 : x
  2. Step 2: Convert to fraction form
    69,831.02/96,368.98 = 39,617.61/x
  3. Step 3: Cross multiply
    69,831.02x = 96,368.98 × 39,617.61
  4. Step 4: Simplify right side
    69,831.02x = 3,817,908,665.74
  5. Step 5: Solve for x
    x = 3,817,908,665.74/69,831.02
  6. Step 6: Final answer
    x = 54,673.54

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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.