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Finding the Fourth Proportional to 54,297.34, 74,911.03 and 42,968.68

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Solution

The fourth proportional to 54,297.34, 74,911.03 and 42,968.68 is: 59,281.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,297.34 : 74,911.03 = 42,968.68 : x
  2. Step 2: Convert to fraction form
    54,297.34/74,911.03 = 42,968.68/x
  3. Step 3: Cross multiply
    54,297.34x = 74,911.03 × 42,968.68
  4. Step 4: Simplify right side
    54,297.34x = 3,218,828,076.54
  5. Step 5: Solve for x
    x = 3,218,828,076.54/54,297.34
  6. Step 6: Final answer
    x = 59,281.51

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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.