Home / 82,831.04-124,116.96-45,359.36

Finding the Fourth Proportional to 82,831.04, 124,116.96 and 45,359.36

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Solution

The fourth proportional to 82,831.04, 124,116.96 and 45,359.36 is: 67,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,831.04 : 124,116.96 = 45,359.36 : x
  2. Step 2: Convert to fraction form
    82,831.04/124,116.96 = 45,359.36/x
  3. Step 3: Cross multiply
    82,831.04x = 124,116.96 × 45,359.36
  4. Step 4: Simplify right side
    82,831.04x = 5,629,865,870.75
  5. Step 5: Solve for x
    x = 5,629,865,870.75/82,831.04
  6. Step 6: Final answer
    x = 67,968.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.