Home / 53,162.87-73,332.30-31,638.16

Finding the Fourth Proportional to 53,162.87, 73,332.30 and 31,638.16

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Solution

The fourth proportional to 53,162.87, 73,332.30 and 31,638.16 is: 43,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,162.87 : 73,332.30 = 31,638.16 : x
  2. Step 2: Convert to fraction form
    53,162.87/73,332.30 = 31,638.16/x
  3. Step 3: Cross multiply
    53,162.87x = 73,332.30 × 31,638.16
  4. Step 4: Simplify right side
    53,162.87x = 2,320,099,250.88
  5. Step 5: Solve for x
    x = 2,320,099,250.88/53,162.87
  6. Step 6: Final answer
    x = 43,641.35

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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.