Home / 56,371.40-77,792.48-31,220.88

Finding the Fourth Proportional to 56,371.40, 77,792.48 and 31,220.88

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Solution

The fourth proportional to 56,371.40, 77,792.48 and 31,220.88 is: 43,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,371.40 : 77,792.48 = 31,220.88 : x
  2. Step 2: Convert to fraction form
    56,371.40/77,792.48 = 31,220.88/x
  3. Step 3: Cross multiply
    56,371.40x = 77,792.48 × 31,220.88
  4. Step 4: Simplify right side
    56,371.40x = 2,428,749,682.98
  5. Step 5: Solve for x
    x = 2,428,749,682.98/56,371.40
  6. Step 6: Final answer
    x = 43,084.79

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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.