Home / 74,866.16-103,290.50-49,385.18

Finding the Fourth Proportional to 74,866.16, 103,290.50 and 49,385.18

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Solution

The fourth proportional to 74,866.16, 103,290.50 and 49,385.18 is: 68,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.16 : 103,290.50 = 49,385.18 : x
  2. Step 2: Convert to fraction form
    74,866.16/103,290.50 = 49,385.18/x
  3. Step 3: Cross multiply
    74,866.16x = 103,290.50 × 49,385.18
  4. Step 4: Simplify right side
    74,866.16x = 5,101,019,934.79
  5. Step 5: Solve for x
    x = 5,101,019,934.79/74,866.16
  6. Step 6: Final answer
    x = 68,135.19

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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.