Home / 71,559.38-107,219.67-31,518.74

Finding the Fourth Proportional to 71,559.38, 107,219.67 and 31,518.74

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Solution

The fourth proportional to 71,559.38, 107,219.67 and 31,518.74 is: 47,225.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,559.38 : 107,219.67 = 31,518.74 : x
  2. Step 2: Convert to fraction form
    71,559.38/107,219.67 = 31,518.74/x
  3. Step 3: Cross multiply
    71,559.38x = 107,219.67 × 31,518.74
  4. Step 4: Simplify right side
    71,559.38x = 3,379,428,901.62
  5. Step 5: Solve for x
    x = 3,379,428,901.62/71,559.38
  6. Step 6: Final answer
    x = 47,225.52

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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.