Home / 56,923.81-78,550.80-31,426.06

Finding the Fourth Proportional to 56,923.81, 78,550.80 and 31,426.06

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Solution

The fourth proportional to 56,923.81, 78,550.80 and 31,426.06 is: 43,365.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,923.81 : 78,550.80 = 31,426.06 : x
  2. Step 2: Convert to fraction form
    56,923.81/78,550.80 = 31,426.06/x
  3. Step 3: Cross multiply
    56,923.81x = 78,550.80 × 31,426.06
  4. Step 4: Simplify right side
    56,923.81x = 2,468,541,761.09
  5. Step 5: Solve for x
    x = 2,468,541,761.09/56,923.81
  6. Step 6: Final answer
    x = 43,365.72

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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.