Home / 70,419.40-105,558.02-44,142.59

Finding the Fourth Proportional to 70,419.40, 105,558.02 and 44,142.59

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Solution

The fourth proportional to 70,419.40, 105,558.02 and 44,142.59 is: 66,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,419.40 : 105,558.02 = 44,142.59 : x
  2. Step 2: Convert to fraction form
    70,419.40/105,558.02 = 44,142.59/x
  3. Step 3: Cross multiply
    70,419.40x = 105,558.02 × 44,142.59
  4. Step 4: Simplify right side
    70,419.40x = 4,659,604,177.36
  5. Step 5: Solve for x
    x = 4,659,604,177.36/70,419.40
  6. Step 6: Final answer
    x = 66,169.33

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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.