Home / 55,911.04-77,138.86-31,709.24

Finding the Fourth Proportional to 55,911.04, 77,138.86 and 31,709.24

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Solution

The fourth proportional to 55,911.04, 77,138.86 and 31,709.24 is: 43,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,911.04 : 77,138.86 = 31,709.24 : x
  2. Step 2: Convert to fraction form
    55,911.04/77,138.86 = 31,709.24/x
  3. Step 3: Cross multiply
    55,911.04x = 77,138.86 × 31,709.24
  4. Step 4: Simplify right side
    55,911.04x = 2,446,014,625.07
  5. Step 5: Solve for x
    x = 2,446,014,625.07/55,911.04
  6. Step 6: Final answer
    x = 43,748.33

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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.