Home / 76,319.05-114,484.04-20,158.60

Finding the Fourth Proportional to 76,319.05, 114,484.04 and 20,158.60

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Solution

The fourth proportional to 76,319.05, 114,484.04 and 20,158.60 is: 30,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,319.05 : 114,484.04 = 20,158.60 : x
  2. Step 2: Convert to fraction form
    76,319.05/114,484.04 = 20,158.60/x
  3. Step 3: Cross multiply
    76,319.05x = 114,484.04 × 20,158.60
  4. Step 4: Simplify right side
    76,319.05x = 2,307,837,876.04
  5. Step 5: Solve for x
    x = 2,307,837,876.04/76,319.05
  6. Step 6: Final answer
    x = 30,239.34

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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.