Home / 74,734.91-103,075.84-47,879.90

Finding the Fourth Proportional to 74,734.91, 103,075.84 and 47,879.90

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Solution

The fourth proportional to 74,734.91, 103,075.84 and 47,879.90 is: 66,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,734.91 : 103,075.84 = 47,879.90 : x
  2. Step 2: Convert to fraction form
    74,734.91/103,075.84 = 47,879.90/x
  3. Step 3: Cross multiply
    74,734.91x = 103,075.84 × 47,879.90
  4. Step 4: Simplify right side
    74,734.91x = 4,935,260,911.62
  5. Step 5: Solve for x
    x = 4,935,260,911.62/74,734.91
  6. Step 6: Final answer
    x = 66,036.89

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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.