Home / 72,020.30-99,331.81-46,181.31

Finding the Fourth Proportional to 72,020.30, 99,331.81 and 46,181.31

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Solution

The fourth proportional to 72,020.30, 99,331.81 and 46,181.31 is: 63,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,020.30 : 99,331.81 = 46,181.31 : x
  2. Step 2: Convert to fraction form
    72,020.30/99,331.81 = 46,181.31/x
  3. Step 3: Cross multiply
    72,020.30x = 99,331.81 × 46,181.31
  4. Step 4: Simplify right side
    72,020.30x = 4,587,273,687.93
  5. Step 5: Solve for x
    x = 4,587,273,687.93/72,020.30
  6. Step 6: Final answer
    x = 63,694.17

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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.