Home / 54,427.90-75,121.56-31,458.70

Finding the Fourth Proportional to 54,427.90, 75,121.56 and 31,458.70

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Solution

The fourth proportional to 54,427.90, 75,121.56 and 31,458.70 is: 43,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,427.90 : 75,121.56 = 31,458.70 : x
  2. Step 2: Convert to fraction form
    54,427.90/75,121.56 = 31,458.70/x
  3. Step 3: Cross multiply
    54,427.90x = 75,121.56 × 31,458.70
  4. Step 4: Simplify right side
    54,427.90x = 2,363,226,619.57
  5. Step 5: Solve for x
    x = 2,363,226,619.57/54,427.90
  6. Step 6: Final answer
    x = 43,419.40

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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.