Home / 56,764.40-78,334.11-31,270.23

Finding the Fourth Proportional to 56,764.40, 78,334.11 and 31,270.23

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Solution

The fourth proportional to 56,764.40, 78,334.11 and 31,270.23 is: 43,152.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,764.40 : 78,334.11 = 31,270.23 : x
  2. Step 2: Convert to fraction form
    56,764.40/78,334.11 = 31,270.23/x
  3. Step 3: Cross multiply
    56,764.40x = 78,334.11 × 31,270.23
  4. Step 4: Simplify right side
    56,764.40x = 2,449,525,636.55
  5. Step 5: Solve for x
    x = 2,449,525,636.55/56,764.40
  6. Step 6: Final answer
    x = 43,152.50

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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.