Home / 69,126.84-103,685.40-39,451.68

Finding the Fourth Proportional to 69,126.84, 103,685.40 and 39,451.68

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Solution

The fourth proportional to 69,126.84, 103,685.40 and 39,451.68 is: 59,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126.84 : 103,685.40 = 39,451.68 : x
  2. Step 2: Convert to fraction form
    69,126.84/103,685.40 = 39,451.68/x
  3. Step 3: Cross multiply
    69,126.84x = 103,685.40 × 39,451.68
  4. Step 4: Simplify right side
    69,126.84x = 4,090,563,221.47
  5. Step 5: Solve for x
    x = 4,090,563,221.47/69,126.84
  6. Step 6: Final answer
    x = 59,174.75

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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.