Home / 56,114.88-77,437.42-30,621.75

Finding the Fourth Proportional to 56,114.88, 77,437.42 and 30,621.75

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Solution

The fourth proportional to 56,114.88, 77,437.42 and 30,621.75 is: 42,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,114.88 : 77,437.42 = 30,621.75 : x
  2. Step 2: Convert to fraction form
    56,114.88/77,437.42 = 30,621.75/x
  3. Step 3: Cross multiply
    56,114.88x = 77,437.42 × 30,621.75
  4. Step 4: Simplify right side
    56,114.88x = 2,371,268,948.94
  5. Step 5: Solve for x
    x = 2,371,268,948.94/56,114.88
  6. Step 6: Final answer
    x = 42,257.40

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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.