Home / 105,576.76-145,695.96-57,831.83

Finding the Fourth Proportional to 105,576.76, 145,695.96 and 57,831.83

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Solution

The fourth proportional to 105,576.76, 145,695.96 and 57,831.83 is: 79,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576.76 : 145,695.96 = 57,831.83 : x
  2. Step 2: Convert to fraction form
    105,576.76/145,695.96 = 57,831.83/x
  3. Step 3: Cross multiply
    105,576.76x = 145,695.96 × 57,831.83
  4. Step 4: Simplify right side
    105,576.76x = 8,425,863,990.41
  5. Step 5: Solve for x
    x = 8,425,863,990.41/105,576.76
  6. Step 6: Final answer
    x = 79,807.94

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1.5x scale

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.