Home / 54,297.18-74,929.16-30,423.78

Finding the Fourth Proportional to 54,297.18, 74,929.16 and 30,423.78

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Solution

The fourth proportional to 54,297.18, 74,929.16 and 30,423.78 is: 41,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,297.18 : 74,929.16 = 30,423.78 : x
  2. Step 2: Convert to fraction form
    54,297.18/74,929.16 = 30,423.78/x
  3. Step 3: Cross multiply
    54,297.18x = 74,929.16 × 30,423.78
  4. Step 4: Simplify right side
    54,297.18x = 2,279,628,279.42
  5. Step 5: Solve for x
    x = 2,279,628,279.42/54,297.18
  6. Step 6: Final answer
    x = 41,984.28

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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.