Home / 55,785.04-76,985.16-31,911.76

Finding the Fourth Proportional to 55,785.04, 76,985.16 and 31,911.76

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Solution

The fourth proportional to 55,785.04, 76,985.16 and 31,911.76 is: 44,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.04 : 76,985.16 = 31,911.76 : x
  2. Step 2: Convert to fraction form
    55,785.04/76,985.16 = 31,911.76/x
  3. Step 3: Cross multiply
    55,785.04x = 76,985.16 × 31,911.76
  4. Step 4: Simplify right side
    55,785.04x = 2,456,731,949.48
  5. Step 5: Solve for x
    x = 2,456,731,949.48/55,785.04
  6. Step 6: Final answer
    x = 44,039.26

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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.