Home / 69,428.13-95,810.07-39,212.90

Finding the Fourth Proportional to 69,428.13, 95,810.07 and 39,212.90

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Solution

The fourth proportional to 69,428.13, 95,810.07 and 39,212.90 is: 54,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,428.13 : 95,810.07 = 39,212.90 : x
  2. Step 2: Convert to fraction form
    69,428.13/95,810.07 = 39,212.90/x
  3. Step 3: Cross multiply
    69,428.13x = 95,810.07 × 39,212.90
  4. Step 4: Simplify right side
    69,428.13x = 3,756,990,693.90
  5. Step 5: Solve for x
    x = 3,756,990,693.90/69,428.13
  6. Step 6: Final answer
    x = 54,113.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.