Home / 56,518.11-77,994.45-31,367.61

Finding the Fourth Proportional to 56,518.11, 77,994.45 and 31,367.61

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Solution

The fourth proportional to 56,518.11, 77,994.45 and 31,367.61 is: 43,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,518.11 : 77,994.45 = 31,367.61 : x
  2. Step 2: Convert to fraction form
    56,518.11/77,994.45 = 31,367.61/x
  3. Step 3: Cross multiply
    56,518.11x = 77,994.45 × 31,367.61
  4. Step 4: Simplify right side
    56,518.11x = 2,446,499,489.76
  5. Step 5: Solve for x
    x = 2,446,499,489.76/56,518.11
  6. Step 6: Final answer
    x = 43,287.00

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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.