Home / 72,831.67-100,507.86-40,566.02

Finding the Fourth Proportional to 72,831.67, 100,507.86 and 40,566.02

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Solution

The fourth proportional to 72,831.67, 100,507.86 and 40,566.02 is: 55,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,831.67 : 100,507.86 = 40,566.02 : x
  2. Step 2: Convert to fraction form
    72,831.67/100,507.86 = 40,566.02/x
  3. Step 3: Cross multiply
    72,831.67x = 100,507.86 × 40,566.02
  4. Step 4: Simplify right side
    72,831.67x = 4,077,204,110.19
  5. Step 5: Solve for x
    x = 4,077,204,110.19/72,831.67
  6. Step 6: Final answer
    x = 55,981.20

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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.