Home / 75,128.93-103,673.97-41,130.89

Finding the Fourth Proportional to 75,128.93, 103,673.97 and 41,130.89

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Solution

The fourth proportional to 75,128.93, 103,673.97 and 41,130.89 is: 56,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,128.93 : 103,673.97 = 41,130.89 : x
  2. Step 2: Convert to fraction form
    75,128.93/103,673.97 = 41,130.89/x
  3. Step 3: Cross multiply
    75,128.93x = 103,673.97 × 41,130.89
  4. Step 4: Simplify right side
    75,128.93x = 4,264,202,655.93
  5. Step 5: Solve for x
    x = 4,264,202,655.93/75,128.93
  6. Step 6: Final answer
    x = 56,758.46

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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.