Home / 64,820.30-97,121.10-31,468.55

Finding the Fourth Proportional to 64,820.30, 97,121.10 and 31,468.55

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Solution

The fourth proportional to 64,820.30, 97,121.10 and 31,468.55 is: 47,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,820.30 : 97,121.10 = 31,468.55 : x
  2. Step 2: Convert to fraction form
    64,820.30/97,121.10 = 31,468.55/x
  3. Step 3: Cross multiply
    64,820.30x = 97,121.10 × 31,468.55
  4. Step 4: Simplify right side
    64,820.30x = 3,056,260,191.41
  5. Step 5: Solve for x
    x = 3,056,260,191.41/64,820.30
  6. Step 6: Final answer
    x = 47,149.74

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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.