Home / 70,342.40-105,562.20-50,637.80

Finding the Fourth Proportional to 70,342.40, 105,562.20 and 50,637.80

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Solution

The fourth proportional to 70,342.40, 105,562.20 and 50,637.80 is: 75,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,342.40 : 105,562.20 = 50,637.80 : x
  2. Step 2: Convert to fraction form
    70,342.40/105,562.20 = 50,637.80/x
  3. Step 3: Cross multiply
    70,342.40x = 105,562.20 × 50,637.80
  4. Step 4: Simplify right side
    70,342.40x = 5,345,437,571.16
  5. Step 5: Solve for x
    x = 5,345,437,571.16/70,342.40
  6. Step 6: Final answer
    x = 75,991.69

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1.5x scale

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.