Home / 80,157.36-110,547-51,835.44

Finding the Fourth Proportional to 80,157.36, 110,547 and 51,835.44

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Solution

The fourth proportional to 80,157.36, 110,547 and 51,835.44 is: 71,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,157.36 : 110,547 = 51,835.44 : x
  2. Step 2: Convert to fraction form
    80,157.36/110,547 = 51,835.44/x
  3. Step 3: Cross multiply
    80,157.36x = 110,547 × 51,835.44
  4. Step 4: Simplify right side
    80,157.36x = 5,730,252,385.68
  5. Step 5: Solve for x
    x = 5,730,252,385.68/80,157.36
  6. Step 6: Final answer
    x = 71,487.54

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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.