Home / 72,343.35-99,831.51-40,076.64

Finding the Fourth Proportional to 72,343.35, 99,831.51 and 40,076.64

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Solution

The fourth proportional to 72,343.35, 99,831.51 and 40,076.64 is: 55,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,343.35 : 99,831.51 = 40,076.64 : x
  2. Step 2: Convert to fraction form
    72,343.35/99,831.51 = 40,076.64/x
  3. Step 3: Cross multiply
    72,343.35x = 99,831.51 × 40,076.64
  4. Step 4: Simplify right side
    72,343.35x = 4,000,911,486.93
  5. Step 5: Solve for x
    x = 4,000,911,486.93/72,343.35
  6. Step 6: Final answer
    x = 55,304.48

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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.