Home / 51,117.57-70,542.90-28,150.09

Finding the Fourth Proportional to 51,117.57, 70,542.90 and 28,150.09

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Solution

The fourth proportional to 51,117.57, 70,542.90 and 28,150.09 is: 38,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,117.57 : 70,542.90 = 28,150.09 : x
  2. Step 2: Convert to fraction form
    51,117.57/70,542.90 = 28,150.09/x
  3. Step 3: Cross multiply
    51,117.57x = 70,542.90 × 28,150.09
  4. Step 4: Simplify right side
    51,117.57x = 1,985,788,983.86
  5. Step 5: Solve for x
    x = 1,985,788,983.86/51,117.57
  6. Step 6: Final answer
    x = 38,847.48

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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.