Home / 54,307.15-74,940.78-31,649.83

Finding the Fourth Proportional to 54,307.15, 74,940.78 and 31,649.83

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Solution

The fourth proportional to 54,307.15, 74,940.78 and 31,649.83 is: 43,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,307.15 : 74,940.78 = 31,649.83 : x
  2. Step 2: Convert to fraction form
    54,307.15/74,940.78 = 31,649.83/x
  3. Step 3: Cross multiply
    54,307.15x = 74,940.78 × 31,649.83
  4. Step 4: Simplify right side
    54,307.15x = 2,371,862,947.07
  5. Step 5: Solve for x
    x = 2,371,862,947.07/54,307.15
  6. Step 6: Final answer
    x = 43,674.97

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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.