Home / 56,639.82-84,971.07-31,715.31

Finding the Fourth Proportional to 56,639.82, 84,971.07 and 31,715.31

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Solution

The fourth proportional to 56,639.82, 84,971.07 and 31,715.31 is: 47,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,639.82 : 84,971.07 = 31,715.31 : x
  2. Step 2: Convert to fraction form
    56,639.82/84,971.07 = 31,715.31/x
  3. Step 3: Cross multiply
    56,639.82x = 84,971.07 × 31,715.31
  4. Step 4: Simplify right side
    56,639.82x = 2,694,883,826.08
  5. Step 5: Solve for x
    x = 2,694,883,826.08/56,639.82
  6. Step 6: Final answer
    x = 47,579.31

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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.