Home / 76,441.12-114,609.36-38,928.60

Finding the Fourth Proportional to 76,441.12, 114,609.36 and 38,928.60

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Solution

The fourth proportional to 76,441.12, 114,609.36 and 38,928.60 is: 58,366.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,441.12 : 114,609.36 = 38,928.60 : x
  2. Step 2: Convert to fraction form
    76,441.12/114,609.36 = 38,928.60/x
  3. Step 3: Cross multiply
    76,441.12x = 114,609.36 × 38,928.60
  4. Step 4: Simplify right side
    76,441.12x = 4,461,581,749.22
  5. Step 5: Solve for x
    x = 4,461,581,749.22/76,441.12
  6. Step 6: Final answer
    x = 58,366.25

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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.