Home / 74,862.36-103,216.68-47,960.64

Finding the Fourth Proportional to 74,862.36, 103,216.68 and 47,960.64

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Solution

The fourth proportional to 74,862.36, 103,216.68 and 47,960.64 is: 66,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.36 : 103,216.68 = 47,960.64 : x
  2. Step 2: Convert to fraction form
    74,862.36/103,216.68 = 47,960.64/x
  3. Step 3: Cross multiply
    74,862.36x = 103,216.68 × 47,960.64
  4. Step 4: Simplify right side
    74,862.36x = 4,950,338,031.48
  5. Step 5: Solve for x
    x = 4,950,338,031.48/74,862.36
  6. Step 6: Final answer
    x = 66,125.86

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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.