Home / 74,947.32-103,284.99-53,689.68

Finding the Fourth Proportional to 74,947.32, 103,284.99 and 53,689.68

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Solution

The fourth proportional to 74,947.32, 103,284.99 and 53,689.68 is: 73,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,947.32 : 103,284.99 = 53,689.68 : x
  2. Step 2: Convert to fraction form
    74,947.32/103,284.99 = 53,689.68/x
  3. Step 3: Cross multiply
    74,947.32x = 103,284.99 × 53,689.68
  4. Step 4: Simplify right side
    74,947.32x = 5,545,338,061.90
  5. Step 5: Solve for x
    x = 5,545,338,061.90/74,947.32
  6. Step 6: Final answer
    x = 73,989.81

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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.