Home / 64,318.40-88,764.09-38,831.03

Finding the Fourth Proportional to 64,318.40, 88,764.09 and 38,831.03

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Solution

The fourth proportional to 64,318.40, 88,764.09 and 38,831.03 is: 53,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,318.40 : 88,764.09 = 38,831.03 : x
  2. Step 2: Convert to fraction form
    64,318.40/88,764.09 = 38,831.03/x
  3. Step 3: Cross multiply
    64,318.40x = 88,764.09 × 38,831.03
  4. Step 4: Simplify right side
    64,318.40x = 3,446,801,041.71
  5. Step 5: Solve for x
    x = 3,446,801,041.71/64,318.40
  6. Step 6: Final answer
    x = 53,589.66

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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.