Home / 74,988.96-103,569.84-51,074.16

Finding the Fourth Proportional to 74,988.96, 103,569.84 and 51,074.16

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Solution

The fourth proportional to 74,988.96, 103,569.84 and 51,074.16 is: 70,540.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,988.96 : 103,569.84 = 51,074.16 : x
  2. Step 2: Convert to fraction form
    74,988.96/103,569.84 = 51,074.16/x
  3. Step 3: Cross multiply
    74,988.96x = 103,569.84 × 51,074.16
  4. Step 4: Simplify right side
    74,988.96x = 5,289,742,579.33
  5. Step 5: Solve for x
    x = 5,289,742,579.33/74,988.96
  6. Step 6: Final answer
    x = 70,540.28

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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.