Home / 74,648.74-111,939.99-39,580.18

Finding the Fourth Proportional to 74,648.74, 111,939.99 and 39,580.18

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Solution

The fourth proportional to 74,648.74, 111,939.99 and 39,580.18 is: 59,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.74 : 111,939.99 = 39,580.18 : x
  2. Step 2: Convert to fraction form
    74,648.74/111,939.99 = 39,580.18/x
  3. Step 3: Cross multiply
    74,648.74x = 111,939.99 × 39,580.18
  4. Step 4: Simplify right side
    74,648.74x = 4,430,604,953.40
  5. Step 5: Solve for x
    x = 4,430,604,953.40/74,648.74
  6. Step 6: Final answer
    x = 59,352.71

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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.