Home / 55,711.90-76,881.77-30,217.81

Finding the Fourth Proportional to 55,711.90, 76,881.77 and 30,217.81

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Solution

The fourth proportional to 55,711.90, 76,881.77 and 30,217.81 is: 41,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,711.90 : 76,881.77 = 30,217.81 : x
  2. Step 2: Convert to fraction form
    55,711.90/76,881.77 = 30,217.81/x
  3. Step 3: Cross multiply
    55,711.90x = 76,881.77 × 30,217.81
  4. Step 4: Simplify right side
    55,711.90x = 2,323,198,802.48
  5. Step 5: Solve for x
    x = 2,323,198,802.48/55,711.90
  6. Step 6: Final answer
    x = 41,700.22

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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.