Home / 45,787.61-63,194.52-31,435.71

Finding the Fourth Proportional to 45,787.61, 63,194.52 and 31,435.71

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Solution

The fourth proportional to 45,787.61, 63,194.52 and 31,435.71 is: 43,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,787.61 : 63,194.52 = 31,435.71 : x
  2. Step 2: Convert to fraction form
    45,787.61/63,194.52 = 31,435.71/x
  3. Step 3: Cross multiply
    45,787.61x = 63,194.52 × 31,435.71
  4. Step 4: Simplify right side
    45,787.61x = 1,986,564,604.31
  5. Step 5: Solve for x
    x = 1,986,564,604.31/45,787.61
  6. Step 6: Final answer
    x = 43,386.51

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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.