Home / 53,317.52-79,951.80-31,137.68

Finding the Fourth Proportional to 53,317.52, 79,951.80 and 31,137.68

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Solution

The fourth proportional to 53,317.52, 79,951.80 and 31,137.68 is: 46,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,317.52 : 79,951.80 = 31,137.68 : x
  2. Step 2: Convert to fraction form
    53,317.52/79,951.80 = 31,137.68/x
  3. Step 3: Cross multiply
    53,317.52x = 79,951.80 × 31,137.68
  4. Step 4: Simplify right side
    53,317.52x = 2,489,513,563.82
  5. Step 5: Solve for x
    x = 2,489,513,563.82/53,317.52
  6. Step 6: Final answer
    x = 46,692.22

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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.