Home / 75,063.24-103,672.31-51,148.40

Finding the Fourth Proportional to 75,063.24, 103,672.31 and 51,148.40

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Solution

The fourth proportional to 75,063.24, 103,672.31 and 51,148.40 is: 70,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.24 : 103,672.31 = 51,148.40 : x
  2. Step 2: Convert to fraction form
    75,063.24/103,672.31 = 51,148.40/x
  3. Step 3: Cross multiply
    75,063.24x = 103,672.31 × 51,148.40
  4. Step 4: Simplify right side
    75,063.24x = 5,302,672,780.80
  5. Step 5: Solve for x
    x = 5,302,672,780.80/75,063.24
  6. Step 6: Final answer
    x = 70,642.74

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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.