Home / 56,464.75-77,921.49-31,319.11

Finding the Fourth Proportional to 56,464.75, 77,921.49 and 31,319.11

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Solution

The fourth proportional to 56,464.75, 77,921.49 and 31,319.11 is: 43,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,464.75 : 77,921.49 = 31,319.11 : x
  2. Step 2: Convert to fraction form
    56,464.75/77,921.49 = 31,319.11/x
  3. Step 3: Cross multiply
    56,464.75x = 77,921.49 × 31,319.11
  4. Step 4: Simplify right side
    56,464.75x = 2,440,431,716.67
  5. Step 5: Solve for x
    x = 2,440,431,716.67/56,464.75
  6. Step 6: Final answer
    x = 43,220.45

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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.