Home / 56,213.62-77,571.75-31,061.50

Finding the Fourth Proportional to 56,213.62, 77,571.75 and 31,061.50

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Solution

The fourth proportional to 56,213.62, 77,571.75 and 31,061.50 is: 42,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,213.62 : 77,571.75 = 31,061.50 : x
  2. Step 2: Convert to fraction form
    56,213.62/77,571.75 = 31,061.50/x
  3. Step 3: Cross multiply
    56,213.62x = 77,571.75 × 31,061.50
  4. Step 4: Simplify right side
    56,213.62x = 2,409,494,912.63
  5. Step 5: Solve for x
    x = 2,409,494,912.63/56,213.62
  6. Step 6: Final answer
    x = 42,863.19

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1.5x scale

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.