Home / 74,727.53-103,152.78-54,743.13

Finding the Fourth Proportional to 74,727.53, 103,152.78 and 54,743.13

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Solution

The fourth proportional to 74,727.53, 103,152.78 and 54,743.13 is: 75,566.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727.53 : 103,152.78 = 54,743.13 : x
  2. Step 2: Convert to fraction form
    74,727.53/103,152.78 = 54,743.13/x
  3. Step 3: Cross multiply
    74,727.53x = 103,152.78 × 54,743.13
  4. Step 4: Simplify right side
    74,727.53x = 5,646,906,045.40
  5. Step 5: Solve for x
    x = 5,646,906,045.40/74,727.53
  6. Step 6: Final answer
    x = 75,566.61

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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.