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Finding the Fourth Proportional to 79,352.96, 119,030.13 and 20,188.69

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Solution

The fourth proportional to 79,352.96, 119,030.13 and 20,188.69 is: 30,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,352.96 : 119,030.13 = 20,188.69 : x
  2. Step 2: Convert to fraction form
    79,352.96/119,030.13 = 20,188.69/x
  3. Step 3: Cross multiply
    79,352.96x = 119,030.13 × 20,188.69
  4. Step 4: Simplify right side
    79,352.96x = 2,403,062,395.23
  5. Step 5: Solve for x
    x = 2,403,062,395.23/79,352.96
  6. Step 6: Final answer
    x = 30,283.21

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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.