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Finding the Fourth Proportional to 56,614.60, 85,019.10 and 36,980.20

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Solution

The fourth proportional to 56,614.60, 85,019.10 and 36,980.20 is: 55,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,614.60 : 85,019.10 = 36,980.20 : x
  2. Step 2: Convert to fraction form
    56,614.60/85,019.10 = 36,980.20/x
  3. Step 3: Cross multiply
    56,614.60x = 85,019.10 × 36,980.20
  4. Step 4: Simplify right side
    56,614.60x = 3,144,023,321.82
  5. Step 5: Solve for x
    x = 3,144,023,321.82/56,614.60
  6. Step 6: Final answer
    x = 55,533.79

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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.