Home / 56,356.88-77,771.93-30,515.30

Finding the Fourth Proportional to 56,356.88, 77,771.93 and 30,515.30

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Solution

The fourth proportional to 56,356.88, 77,771.93 and 30,515.30 is: 42,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.88 : 77,771.93 = 30,515.30 : x
  2. Step 2: Convert to fraction form
    56,356.88/77,771.93 = 30,515.30/x
  3. Step 3: Cross multiply
    56,356.88x = 77,771.93 × 30,515.30
  4. Step 4: Simplify right side
    56,356.88x = 2,373,233,775.53
  5. Step 5: Solve for x
    x = 2,373,233,775.53/56,356.88
  6. Step 6: Final answer
    x = 42,110.81

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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.