Home / 55,721.81-76,875.92-36,611.87

Finding the Fourth Proportional to 55,721.81, 76,875.92 and 36,611.87

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Solution

The fourth proportional to 55,721.81, 76,875.92 and 36,611.87 is: 50,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.81 : 76,875.92 = 36,611.87 : x
  2. Step 2: Convert to fraction form
    55,721.81/76,875.92 = 36,611.87/x
  3. Step 3: Cross multiply
    55,721.81x = 76,875.92 × 36,611.87
  4. Step 4: Simplify right side
    55,721.81x = 2,814,571,006.11
  5. Step 5: Solve for x
    x = 2,814,571,006.11/55,721.81
  6. Step 6: Final answer
    x = 50,511.12

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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.