Home / 56,211.75-77,572.22-31,065.03

Finding the Fourth Proportional to 56,211.75, 77,572.22 and 31,065.03

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Solution

The fourth proportional to 56,211.75, 77,572.22 and 31,065.03 is: 42,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,211.75 : 77,572.22 = 31,065.03 : x
  2. Step 2: Convert to fraction form
    56,211.75/77,572.22 = 31,065.03/x
  3. Step 3: Cross multiply
    56,211.75x = 77,572.22 × 31,065.03
  4. Step 4: Simplify right side
    56,211.75x = 2,409,783,186.14
  5. Step 5: Solve for x
    x = 2,409,783,186.14/56,211.75
  6. Step 6: Final answer
    x = 42,869.74

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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.