Home / 64,652.56-89,272.20-42,002.80

Finding the Fourth Proportional to 64,652.56, 89,272.20 and 42,002.80

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Solution

The fourth proportional to 64,652.56, 89,272.20 and 42,002.80 is: 57,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.56 : 89,272.20 = 42,002.80 : x
  2. Step 2: Convert to fraction form
    64,652.56/89,272.20 = 42,002.80/x
  3. Step 3: Cross multiply
    64,652.56x = 89,272.20 × 42,002.80
  4. Step 4: Simplify right side
    64,652.56x = 3,749,682,362.16
  5. Step 5: Solve for x
    x = 3,749,682,362.16/64,652.56
  6. Step 6: Final answer
    x = 57,997.43

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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.