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Finding the Fourth Proportional to 75,292.65, 103,907.12 and 45,072.12

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Solution

The fourth proportional to 75,292.65, 103,907.12 and 45,072.12 is: 62,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,292.65 : 103,907.12 = 45,072.12 : x
  2. Step 2: Convert to fraction form
    75,292.65/103,907.12 = 45,072.12/x
  3. Step 3: Cross multiply
    75,292.65x = 103,907.12 × 45,072.12
  4. Step 4: Simplify right side
    75,292.65x = 4,683,314,345.79
  5. Step 5: Solve for x
    x = 4,683,314,345.79/75,292.65
  6. Step 6: Final answer
    x = 62,201.48

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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.