Home / 76,281.06-114,429.27-20,125.05

Finding the Fourth Proportional to 76,281.06, 114,429.27 and 20,125.05

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Solution

The fourth proportional to 76,281.06, 114,429.27 and 20,125.05 is: 30,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,281.06 : 114,429.27 = 20,125.05 : x
  2. Step 2: Convert to fraction form
    76,281.06/114,429.27 = 20,125.05/x
  3. Step 3: Cross multiply
    76,281.06x = 114,429.27 × 20,125.05
  4. Step 4: Simplify right side
    76,281.06x = 2,302,894,780.21
  5. Step 5: Solve for x
    x = 2,302,894,780.21/76,281.06
  6. Step 6: Final answer
    x = 30,189.60

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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.