Home / 55,555.77-76,664.99-31,690.11

Finding the Fourth Proportional to 55,555.77, 76,664.99 and 31,690.11

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Solution

The fourth proportional to 55,555.77, 76,664.99 and 31,690.11 is: 43,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.77 : 76,664.99 = 31,690.11 : x
  2. Step 2: Convert to fraction form
    55,555.77/76,664.99 = 31,690.11/x
  3. Step 3: Cross multiply
    55,555.77x = 76,664.99 × 31,690.11
  4. Step 4: Simplify right side
    55,555.77x = 2,429,521,807.80
  5. Step 5: Solve for x
    x = 2,429,521,807.80/55,555.77
  6. Step 6: Final answer
    x = 43,731.22

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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.