Home / 53,309.18-79,936.77-31,128.14

Finding the Fourth Proportional to 53,309.18, 79,936.77 and 31,128.14

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Solution

The fourth proportional to 53,309.18, 79,936.77 and 31,128.14 is: 46,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309.18 : 79,936.77 = 31,128.14 : x
  2. Step 2: Convert to fraction form
    53,309.18/79,936.77 = 31,128.14/x
  3. Step 3: Cross multiply
    53,309.18x = 79,936.77 × 31,128.14
  4. Step 4: Simplify right side
    53,309.18x = 2,488,282,967.71
  5. Step 5: Solve for x
    x = 2,488,282,967.71/53,309.18
  6. Step 6: Final answer
    x = 46,676.44

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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.