Home / 74,790.20-103,208.67-42,961.16

Finding the Fourth Proportional to 74,790.20, 103,208.67 and 42,961.16

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Solution

The fourth proportional to 74,790.20, 103,208.67 and 42,961.16 is: 59,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.20 : 103,208.67 = 42,961.16 : x
  2. Step 2: Convert to fraction form
    74,790.20/103,208.67 = 42,961.16/x
  3. Step 3: Cross multiply
    74,790.20x = 103,208.67 × 42,961.16
  4. Step 4: Simplify right side
    74,790.20x = 4,433,963,669.21
  5. Step 5: Solve for x
    x = 4,433,963,669.21/74,790.20
  6. Step 6: Final answer
    x = 59,285.36

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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.