Home / 75,128.67-103,673.62-41,130.64

Finding the Fourth Proportional to 75,128.67, 103,673.62 and 41,130.64

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Solution

The fourth proportional to 75,128.67, 103,673.62 and 41,130.64 is: 56,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.67 : 103,673.62 = 41,130.64 : x
  2. Step 2: Convert to fraction form
    75,128.67/103,673.62 = 41,130.64/x
  3. Step 3: Cross multiply
    75,128.67x = 103,673.62 × 41,130.64
  4. Step 4: Simplify right side
    75,128.67x = 4,264,162,341.72
  5. Step 5: Solve for x
    x = 4,264,162,341.72/75,128.67
  6. Step 6: Final answer
    x = 56,758.12

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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.