Home / 54,272.40-74,905.19-31,624.82

Finding the Fourth Proportional to 54,272.40, 74,905.19 and 31,624.82

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Solution

The fourth proportional to 54,272.40, 74,905.19 and 31,624.82 is: 43,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.40 : 74,905.19 = 31,624.82 : x
  2. Step 2: Convert to fraction form
    54,272.40/74,905.19 = 31,624.82/x
  3. Step 3: Cross multiply
    54,272.40x = 74,905.19 × 31,624.82
  4. Step 4: Simplify right side
    54,272.40x = 2,368,862,618.17
  5. Step 5: Solve for x
    x = 2,368,862,618.17/54,272.40
  6. Step 6: Final answer
    x = 43,647.65

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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.