Home / 70,187.85-105,182.24-54,319.01

Finding the Fourth Proportional to 70,187.85, 105,182.24 and 54,319.01

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Solution

The fourth proportional to 70,187.85, 105,182.24 and 54,319.01 is: 81,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,187.85 : 105,182.24 = 54,319.01 : x
  2. Step 2: Convert to fraction form
    70,187.85/105,182.24 = 54,319.01/x
  3. Step 3: Cross multiply
    70,187.85x = 105,182.24 × 54,319.01
  4. Step 4: Simplify right side
    70,187.85x = 5,713,394,348.88
  5. Step 5: Solve for x
    x = 5,713,394,348.88/70,187.85
  6. Step 6: Final answer
    x = 81,401.47

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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.