Home / 57,022.81-78,689.48-31,181.95

Finding the Fourth Proportional to 57,022.81, 78,689.48 and 31,181.95

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Solution

The fourth proportional to 57,022.81, 78,689.48 and 31,181.95 is: 43,030.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,022.81 : 78,689.48 = 31,181.95 : x
  2. Step 2: Convert to fraction form
    57,022.81/78,689.48 = 31,181.95/x
  3. Step 3: Cross multiply
    57,022.81x = 78,689.48 × 31,181.95
  4. Step 4: Simplify right side
    57,022.81x = 2,453,691,274.98
  5. Step 5: Solve for x
    x = 2,453,691,274.98/57,022.81
  6. Step 6: Final answer
    x = 43,030.00

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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.