Home / 53,753.32-80,223.45-52,353.64

Finding the Fourth Proportional to 53,753.32, 80,223.45 and 52,353.64

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Solution

The fourth proportional to 53,753.32, 80,223.45 and 52,353.64 is: 78,134.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,753.32 : 80,223.45 = 52,353.64 : x
  2. Step 2: Convert to fraction form
    53,753.32/80,223.45 = 52,353.64/x
  3. Step 3: Cross multiply
    53,753.32x = 80,223.45 × 52,353.64
  4. Step 4: Simplify right side
    53,753.32x = 4,199,989,620.86
  5. Step 5: Solve for x
    x = 4,199,989,620.86/53,753.32
  6. Step 6: Final answer
    x = 78,134.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.