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Finding the Fourth Proportional to 56,309.40, 84,464.10 and 55,434.60

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Solution

The fourth proportional to 56,309.40, 84,464.10 and 55,434.60 is: 83,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,309.40 : 84,464.10 = 55,434.60 : x
  2. Step 2: Convert to fraction form
    56,309.40/84,464.10 = 55,434.60/x
  3. Step 3: Cross multiply
    56,309.40x = 84,464.10 × 55,434.60
  4. Step 4: Simplify right side
    56,309.40x = 4,682,233,597.86
  5. Step 5: Solve for x
    x = 4,682,233,597.86/56,309.40
  6. Step 6: Final answer
    x = 83,151.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.