Home / 79,420.33-119,688.28-71,532.73

Finding the Fourth Proportional to 79,420.33, 119,688.28 and 71,532.73

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Solution

The fourth proportional to 79,420.33, 119,688.28 and 71,532.73 is: 107,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,420.33 : 119,688.28 = 71,532.73 : x
  2. Step 2: Convert to fraction form
    79,420.33/119,688.28 = 71,532.73/x
  3. Step 3: Cross multiply
    79,420.33x = 119,688.28 × 71,532.73
  4. Step 4: Simplify right side
    79,420.33x = 8,561,629,417.40
  5. Step 5: Solve for x
    x = 8,561,629,417.40/79,420.33
  6. Step 6: Final answer
    x = 107,801.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.