Home / 75,631.70-113,447.55-72,002.90

Finding the Fourth Proportional to 75,631.70, 113,447.55 and 72,002.90

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Solution

The fourth proportional to 75,631.70, 113,447.55 and 72,002.90 is: 108,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.70 : 113,447.55 = 72,002.90 : x
  2. Step 2: Convert to fraction form
    75,631.70/113,447.55 = 72,002.90/x
  3. Step 3: Cross multiply
    75,631.70x = 113,447.55 × 72,002.90
  4. Step 4: Simplify right side
    75,631.70x = 8,168,552,597.90
  5. Step 5: Solve for x
    x = 8,168,552,597.90/75,631.70
  6. Step 6: Final answer
    x = 108,004.35

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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.