Home / 75,139.16-103,684.86-44,918.48

Finding the Fourth Proportional to 75,139.16, 103,684.86 and 44,918.48

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Solution

The fourth proportional to 75,139.16, 103,684.86 and 44,918.48 is: 61,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.16 : 103,684.86 = 44,918.48 : x
  2. Step 2: Convert to fraction form
    75,139.16/103,684.86 = 44,918.48/x
  3. Step 3: Cross multiply
    75,139.16x = 103,684.86 × 44,918.48
  4. Step 4: Simplify right side
    75,139.16x = 4,657,366,310.21
  5. Step 5: Solve for x
    x = 4,657,366,310.21/75,139.16
  6. Step 6: Final answer
    x = 61,983.21

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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.