Home / 54,912.20-75,780.15-31,038.97

Finding the Fourth Proportional to 54,912.20, 75,780.15 and 31,038.97

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Solution

The fourth proportional to 54,912.20, 75,780.15 and 31,038.97 is: 42,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,912.20 : 75,780.15 = 31,038.97 : x
  2. Step 2: Convert to fraction form
    54,912.20/75,780.15 = 31,038.97/x
  3. Step 3: Cross multiply
    54,912.20x = 75,780.15 × 31,038.97
  4. Step 4: Simplify right side
    54,912.20x = 2,352,137,802.45
  5. Step 5: Solve for x
    x = 2,352,137,802.45/54,912.20
  6. Step 6: Final answer
    x = 42,834.52

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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.