Home / 57,014.82-78,570.81-40,218.66

Finding the Fourth Proportional to 57,014.82, 78,570.81 and 40,218.66

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Solution

The fourth proportional to 57,014.82, 78,570.81 and 40,218.66 is: 55,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,014.82 : 78,570.81 = 40,218.66 : x
  2. Step 2: Convert to fraction form
    57,014.82/78,570.81 = 40,218.66/x
  3. Step 3: Cross multiply
    57,014.82x = 78,570.81 × 40,218.66
  4. Step 4: Simplify right side
    57,014.82x = 3,160,012,693.31
  5. Step 5: Solve for x
    x = 3,160,012,693.31/57,014.82
  6. Step 6: Final answer
    x = 55,424.41

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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.