Home / 74,641.42-103,009.50-56,211.54

Finding the Fourth Proportional to 74,641.42, 103,009.50 and 56,211.54

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Solution

The fourth proportional to 74,641.42, 103,009.50 and 56,211.54 is: 77,575.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,641.42 : 103,009.50 = 56,211.54 : x
  2. Step 2: Convert to fraction form
    74,641.42/103,009.50 = 56,211.54/x
  3. Step 3: Cross multiply
    74,641.42x = 103,009.50 × 56,211.54
  4. Step 4: Simplify right side
    74,641.42x = 5,790,322,954.39
  5. Step 5: Solve for x
    x = 5,790,322,954.39/74,641.42
  6. Step 6: Final answer
    x = 77,575.19

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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.