Home / 74,923.80-112,328.10-42,091.80

Finding the Fourth Proportional to 74,923.80, 112,328.10 and 42,091.80

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Solution

The fourth proportional to 74,923.80, 112,328.10 and 42,091.80 is: 63,105.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,923.80 : 112,328.10 = 42,091.80 : x
  2. Step 2: Convert to fraction form
    74,923.80/112,328.10 = 42,091.80/x
  3. Step 3: Cross multiply
    74,923.80x = 112,328.10 × 42,091.80
  4. Step 4: Simplify right side
    74,923.80x = 4,728,091,919.58
  5. Step 5: Solve for x
    x = 4,728,091,919.58/74,923.80
  6. Step 6: Final answer
    x = 63,105.34

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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.