Home / 87,870.78-131,864.49-46,346.94

Finding the Fourth Proportional to 87,870.78, 131,864.49 and 46,346.94

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Solution

The fourth proportional to 87,870.78, 131,864.49 and 46,346.94 is: 69,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,870.78 : 131,864.49 = 46,346.94 : x
  2. Step 2: Convert to fraction form
    87,870.78/131,864.49 = 46,346.94/x
  3. Step 3: Cross multiply
    87,870.78x = 131,864.49 × 46,346.94
  4. Step 4: Simplify right side
    87,870.78x = 6,111,515,606.16
  5. Step 5: Solve for x
    x = 6,111,515,606.16/87,870.78
  6. Step 6: Final answer
    x = 69,551.17

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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.