Home / 48,235.89-72,353.87-20,140.64

Finding the Fourth Proportional to 48,235.89, 72,353.87 and 20,140.64

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Solution

The fourth proportional to 48,235.89, 72,353.87 and 20,140.64 is: 30,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,235.89 : 72,353.87 = 20,140.64 : x
  2. Step 2: Convert to fraction form
    48,235.89/72,353.87 = 20,140.64/x
  3. Step 3: Cross multiply
    48,235.89x = 72,353.87 × 20,140.64
  4. Step 4: Simplify right side
    48,235.89x = 1,457,252,785.80
  5. Step 5: Solve for x
    x = 1,457,252,785.80/48,235.89
  6. Step 6: Final answer
    x = 30,210.97

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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.