Home / 47,070.89-70,606.91-13,791.63

Finding the Fourth Proportional to 47,070.89, 70,606.91 and 13,791.63

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Solution

The fourth proportional to 47,070.89, 70,606.91 and 13,791.63 is: 20,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,070.89 : 70,606.91 = 13,791.63 : x
  2. Step 2: Convert to fraction form
    47,070.89/70,606.91 = 13,791.63/x
  3. Step 3: Cross multiply
    47,070.89x = 70,606.91 × 13,791.63
  4. Step 4: Simplify right side
    47,070.89x = 973,784,129.47
  5. Step 5: Solve for x
    x = 973,784,129.47/47,070.89
  6. Step 6: Final answer
    x = 20,687.61

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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.