Home / 56,928.66-78,557.38-31,430.89

Finding the Fourth Proportional to 56,928.66, 78,557.38 and 31,430.89

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Solution

The fourth proportional to 56,928.66, 78,557.38 and 31,430.89 is: 43,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,928.66 : 78,557.38 = 31,430.89 : x
  2. Step 2: Convert to fraction form
    56,928.66/78,557.38 = 31,430.89/x
  3. Step 3: Cross multiply
    56,928.66x = 78,557.38 × 31,430.89
  4. Step 4: Simplify right side
    56,928.66x = 2,469,128,369.47
  5. Step 5: Solve for x
    x = 2,469,128,369.47/56,928.66
  6. Step 6: Final answer
    x = 43,372.33

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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.