Home / 47,701.12-71,543.52-12,644.32

Finding the Fourth Proportional to 47,701.12, 71,543.52 and 12,644.32

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Solution

The fourth proportional to 47,701.12, 71,543.52 and 12,644.32 is: 18,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,701.12 : 71,543.52 = 12,644.32 : x
  2. Step 2: Convert to fraction form
    47,701.12/71,543.52 = 12,644.32/x
  3. Step 3: Cross multiply
    47,701.12x = 71,543.52 × 12,644.32
  4. Step 4: Simplify right side
    47,701.12x = 904,619,160.81
  5. Step 5: Solve for x
    x = 904,619,160.81/47,701.12
  6. Step 6: Final answer
    x = 18,964.32

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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.