Home / 74,645.74-111,935.49-39,577.18

Finding the Fourth Proportional to 74,645.74, 111,935.49 and 39,577.18

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Solution

The fourth proportional to 74,645.74, 111,935.49 and 39,577.18 is: 59,348.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,645.74 : 111,935.49 = 39,577.18 : x
  2. Step 2: Convert to fraction form
    74,645.74/111,935.49 = 39,577.18/x
  3. Step 3: Cross multiply
    74,645.74x = 111,935.49 × 39,577.18
  4. Step 4: Simplify right side
    74,645.74x = 4,430,091,036.12
  5. Step 5: Solve for x
    x = 4,430,091,036.12/74,645.74
  6. Step 6: Final answer
    x = 59,348.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.