Home / 56,868.27-78,478.48-31,374.95

Finding the Fourth Proportional to 56,868.27, 78,478.48 and 31,374.95

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Solution

The fourth proportional to 56,868.27, 78,478.48 and 31,374.95 is: 43,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,868.27 : 78,478.48 = 31,374.95 : x
  2. Step 2: Convert to fraction form
    56,868.27/78,478.48 = 31,374.95/x
  3. Step 3: Cross multiply
    56,868.27x = 78,478.48 × 31,374.95
  4. Step 4: Simplify right side
    56,868.27x = 2,462,257,915.25
  5. Step 5: Solve for x
    x = 2,462,257,915.25/56,868.27
  6. Step 6: Final answer
    x = 43,297.57

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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.