Home / 54,355.36-74,975.88-39,270.19

Finding the Fourth Proportional to 54,355.36, 74,975.88 and 39,270.19

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Solution

The fourth proportional to 54,355.36, 74,975.88 and 39,270.19 is: 54,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,355.36 : 74,975.88 = 39,270.19 : x
  2. Step 2: Convert to fraction form
    54,355.36/74,975.88 = 39,270.19/x
  3. Step 3: Cross multiply
    54,355.36x = 74,975.88 × 39,270.19
  4. Step 4: Simplify right side
    54,355.36x = 2,944,317,053.02
  5. Step 5: Solve for x
    x = 2,944,317,053.02/54,355.36
  6. Step 6: Final answer
    x = 54,167.92

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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.