Home / 55,605.02-76,736.16-31,731.21

Finding the Fourth Proportional to 55,605.02, 76,736.16 and 31,731.21

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Solution

The fourth proportional to 55,605.02, 76,736.16 and 31,731.21 is: 43,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,605.02 : 76,736.16 = 31,731.21 : x
  2. Step 2: Convert to fraction form
    55,605.02/76,736.16 = 31,731.21/x
  3. Step 3: Cross multiply
    55,605.02x = 76,736.16 × 31,731.21
  4. Step 4: Simplify right side
    55,605.02x = 2,434,931,207.55
  5. Step 5: Solve for x
    x = 2,434,931,207.55/55,605.02
  6. Step 6: Final answer
    x = 43,789.78

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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.