Home / 105,576.54-145,695.64-57,831.60

Finding the Fourth Proportional to 105,576.54, 145,695.64 and 57,831.60

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Solution

The fourth proportional to 105,576.54, 145,695.64 and 57,831.60 is: 79,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576.54 : 145,695.64 = 57,831.60 : x
  2. Step 2: Convert to fraction form
    105,576.54/145,695.64 = 57,831.60/x
  3. Step 3: Cross multiply
    105,576.54x = 145,695.64 × 57,831.60
  4. Step 4: Simplify right side
    105,576.54x = 8,425,811,092.48
  5. Step 5: Solve for x
    x = 8,425,811,092.48/105,576.54
  6. Step 6: Final answer
    x = 79,807.61

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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.