Home / 56,835.95-78,431.81-31,343.39

Finding the Fourth Proportional to 56,835.95, 78,431.81 and 31,343.39

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Solution

The fourth proportional to 56,835.95, 78,431.81 and 31,343.39 is: 43,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,835.95 : 78,431.81 = 31,343.39 : x
  2. Step 2: Convert to fraction form
    56,835.95/78,431.81 = 31,343.39/x
  3. Step 3: Cross multiply
    56,835.95x = 78,431.81 × 31,343.39
  4. Step 4: Simplify right side
    56,835.95x = 2,458,318,554.48
  5. Step 5: Solve for x
    x = 2,458,318,554.48/56,835.95
  6. Step 6: Final answer
    x = 43,252.88

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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.