Home / 56,646.54-78,170.67-31,152.96

Finding the Fourth Proportional to 56,646.54, 78,170.67 and 31,152.96

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Solution

The fourth proportional to 56,646.54, 78,170.67 and 31,152.96 is: 42,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,646.54 : 78,170.67 = 31,152.96 : x
  2. Step 2: Convert to fraction form
    56,646.54/78,170.67 = 31,152.96/x
  3. Step 3: Cross multiply
    56,646.54x = 78,170.67 × 31,152.96
  4. Step 4: Simplify right side
    56,646.54x = 2,435,247,755.68
  5. Step 5: Solve for x
    x = 2,435,247,755.68/56,646.54
  6. Step 6: Final answer
    x = 42,990.23

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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.