Home / 70,451.76-105,579-50,637.36

Finding the Fourth Proportional to 70,451.76, 105,579 and 50,637.36

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Solution

The fourth proportional to 70,451.76, 105,579 and 50,637.36 is: 75,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,451.76 : 105,579 = 50,637.36 : x
  2. Step 2: Convert to fraction form
    70,451.76/105,579 = 50,637.36/x
  3. Step 3: Cross multiply
    70,451.76x = 105,579 × 50,637.36
  4. Step 4: Simplify right side
    70,451.76x = 5,346,241,831.44
  5. Step 5: Solve for x
    x = 5,346,241,831.44/70,451.76
  6. Step 6: Final answer
    x = 75,885.14

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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.