Home / 76,318.55-114,483.29-20,158.10

Finding the Fourth Proportional to 76,318.55, 114,483.29 and 20,158.10

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Solution

The fourth proportional to 76,318.55, 114,483.29 and 20,158.10 is: 30,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,318.55 : 114,483.29 = 20,158.10 : x
  2. Step 2: Convert to fraction form
    76,318.55/114,483.29 = 20,158.10/x
  3. Step 3: Cross multiply
    76,318.55x = 114,483.29 × 20,158.10
  4. Step 4: Simplify right side
    76,318.55x = 2,307,765,695.33
  5. Step 5: Solve for x
    x = 2,307,765,695.33/76,318.55
  6. Step 6: Final answer
    x = 30,238.59

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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.