Home / 56,519.11-77,995.83-31,368.61

Finding the Fourth Proportional to 56,519.11, 77,995.83 and 31,368.61

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Solution

The fourth proportional to 56,519.11, 77,995.83 and 31,368.61 is: 43,288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,519.11 : 77,995.83 = 31,368.61 : x
  2. Step 2: Convert to fraction form
    56,519.11/77,995.83 = 31,368.61/x
  3. Step 3: Cross multiply
    56,519.11x = 77,995.83 × 31,368.61
  4. Step 4: Simplify right side
    56,519.11x = 2,446,620,772.90
  5. Step 5: Solve for x
    x = 2,446,620,772.90/56,519.11
  6. Step 6: Final answer
    x = 43,288.38

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1.5x scale

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.