Home / 70,831.18-97,750.62-40,206.43

Finding the Fourth Proportional to 70,831.18, 97,750.62 and 40,206.43

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Solution

The fourth proportional to 70,831.18, 97,750.62 and 40,206.43 is: 55,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.18 : 97,750.62 = 40,206.43 : x
  2. Step 2: Convert to fraction form
    70,831.18/97,750.62 = 40,206.43/x
  3. Step 3: Cross multiply
    70,831.18x = 97,750.62 × 40,206.43
  4. Step 4: Simplify right side
    70,831.18x = 3,930,203,460.49
  5. Step 5: Solve for x
    x = 3,930,203,460.49/70,831.18
  6. Step 6: Final answer
    x = 55,486.91

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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.