Home / 75,050.74-103,655.06-51,135.90

Finding the Fourth Proportional to 75,050.74, 103,655.06 and 51,135.90

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Solution

The fourth proportional to 75,050.74, 103,655.06 and 51,135.90 is: 70,625.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,050.74 : 103,655.06 = 51,135.90 : x
  2. Step 2: Convert to fraction form
    75,050.74/103,655.06 = 51,135.90/x
  3. Step 3: Cross multiply
    75,050.74x = 103,655.06 × 51,135.90
  4. Step 4: Simplify right side
    75,050.74x = 5,300,494,782.65
  5. Step 5: Solve for x
    x = 5,300,494,782.65/75,050.74
  6. Step 6: Final answer
    x = 70,625.48

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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.