Home / 47,900.64-71,859.60-21,617.76

Finding the Fourth Proportional to 47,900.64, 71,859.60 and 21,617.76

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Solution

The fourth proportional to 47,900.64, 71,859.60 and 21,617.76 is: 32,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,900.64 : 71,859.60 = 21,617.76 : x
  2. Step 2: Convert to fraction form
    47,900.64/71,859.60 = 21,617.76/x
  3. Step 3: Cross multiply
    47,900.64x = 71,859.60 × 21,617.76
  4. Step 4: Simplify right side
    47,900.64x = 1,553,443,586.50
  5. Step 5: Solve for x
    x = 1,553,443,586.50/47,900.64
  6. Step 6: Final answer
    x = 32,430.54

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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.