Home / 63,129.37-87,121.11-36,280.30

Finding the Fourth Proportional to 63,129.37, 87,121.11 and 36,280.30

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Solution

The fourth proportional to 63,129.37, 87,121.11 and 36,280.30 is: 50,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,129.37 : 87,121.11 = 36,280.30 : x
  2. Step 2: Convert to fraction form
    63,129.37/87,121.11 = 36,280.30/x
  3. Step 3: Cross multiply
    63,129.37x = 87,121.11 × 36,280.30
  4. Step 4: Simplify right side
    63,129.37x = 3,160,780,007.13
  5. Step 5: Solve for x
    x = 3,160,780,007.13/63,129.37
  6. Step 6: Final answer
    x = 50,068.30

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1.5x scale

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.