Home / 54,170.10-74,749.50-31,507.92

Finding the Fourth Proportional to 54,170.10, 74,749.50 and 31,507.92

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Solution

The fourth proportional to 54,170.10, 74,749.50 and 31,507.92 is: 43,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,170.10 : 74,749.50 = 31,507.92 : x
  2. Step 2: Convert to fraction form
    54,170.10/74,749.50 = 31,507.92/x
  3. Step 3: Cross multiply
    54,170.10x = 74,749.50 × 31,507.92
  4. Step 4: Simplify right side
    54,170.10x = 2,355,201,266.04
  5. Step 5: Solve for x
    x = 2,355,201,266.04/54,170.10
  6. Step 6: Final answer
    x = 43,477.88

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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.