Home / 56,807.98-78,395.55-31,314.85

Finding the Fourth Proportional to 56,807.98, 78,395.55 and 31,314.85

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Solution

The fourth proportional to 56,807.98, 78,395.55 and 31,314.85 is: 43,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,807.98 : 78,395.55 = 31,314.85 : x
  2. Step 2: Convert to fraction form
    56,807.98/78,395.55 = 31,314.85/x
  3. Step 3: Cross multiply
    56,807.98x = 78,395.55 × 31,314.85
  4. Step 4: Simplify right side
    56,807.98x = 2,454,944,888.92
  5. Step 5: Solve for x
    x = 2,454,944,888.92/56,807.98
  6. Step 6: Final answer
    x = 43,214.79

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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.