Home / 56,286.72-78,030.89-53,290.56

Finding the Fourth Proportional to 56,286.72, 78,030.89 and 53,290.56

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Solution

The fourth proportional to 56,286.72, 78,030.89 and 53,290.56 is: 73,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.72 : 78,030.89 = 53,290.56 : x
  2. Step 2: Convert to fraction form
    56,286.72/78,030.89 = 53,290.56/x
  3. Step 3: Cross multiply
    56,286.72x = 78,030.89 × 53,290.56
  4. Step 4: Simplify right side
    56,286.72x = 4,158,309,825.40
  5. Step 5: Solve for x
    x = 4,158,309,825.40/56,286.72
  6. Step 6: Final answer
    x = 73,877.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.