Home / 54,360.36-74,982.78-39,275.19

Finding the Fourth Proportional to 54,360.36, 74,982.78 and 39,275.19

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Solution

The fourth proportional to 54,360.36, 74,982.78 and 39,275.19 is: 54,174.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,360.36 : 74,982.78 = 39,275.19 : x
  2. Step 2: Convert to fraction form
    54,360.36/74,982.78 = 39,275.19/x
  3. Step 3: Cross multiply
    54,360.36x = 74,982.78 × 39,275.19
  4. Step 4: Simplify right side
    54,360.36x = 2,944,962,931.23
  5. Step 5: Solve for x
    x = 2,944,962,931.23/54,360.36
  6. Step 6: Final answer
    x = 54,174.82

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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.