Home / 55,449.30-76,519.95-31,575.98

Finding the Fourth Proportional to 55,449.30, 76,519.95 and 31,575.98

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Solution

The fourth proportional to 55,449.30, 76,519.95 and 31,575.98 is: 43,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,449.30 : 76,519.95 = 31,575.98 : x
  2. Step 2: Convert to fraction form
    55,449.30/76,519.95 = 31,575.98/x
  3. Step 3: Cross multiply
    55,449.30x = 76,519.95 × 31,575.98
  4. Step 4: Simplify right side
    55,449.30x = 2,416,192,602.10
  5. Step 5: Solve for x
    x = 2,416,192,602.10/55,449.30
  6. Step 6: Final answer
    x = 43,574.81

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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.