Home / 74,854.19-103,316.15-49,365.16

Finding the Fourth Proportional to 74,854.19, 103,316.15 and 49,365.16

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Solution

The fourth proportional to 74,854.19, 103,316.15 and 49,365.16 is: 68,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,854.19 : 103,316.15 = 49,365.16 : x
  2. Step 2: Convert to fraction form
    74,854.19/103,316.15 = 49,365.16/x
  3. Step 3: Cross multiply
    74,854.19x = 103,316.15 × 49,365.16
  4. Step 4: Simplify right side
    74,854.19x = 5,100,218,140.46
  5. Step 5: Solve for x
    x = 5,100,218,140.46/74,854.19
  6. Step 6: Final answer
    x = 68,135.37

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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.