Home / 72,535.19-108,724.31-30,438.14

Finding the Fourth Proportional to 72,535.19, 108,724.31 and 30,438.14

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Solution

The fourth proportional to 72,535.19, 108,724.31 and 30,438.14 is: 45,624.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,535.19 : 108,724.31 = 30,438.14 : x
  2. Step 2: Convert to fraction form
    72,535.19/108,724.31 = 30,438.14/x
  3. Step 3: Cross multiply
    72,535.19x = 108,724.31 × 30,438.14
  4. Step 4: Simplify right side
    72,535.19x = 3,309,365,073.37
  5. Step 5: Solve for x
    x = 3,309,365,073.37/72,535.19
  6. Step 6: Final answer
    x = 45,624.27

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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.