Home / 51,115.88-70,539.15-28,454.82

Finding the Fourth Proportional to 51,115.88, 70,539.15 and 28,454.82

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Solution

The fourth proportional to 51,115.88, 70,539.15 and 28,454.82 is: 39,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,115.88 : 70,539.15 = 28,454.82 : x
  2. Step 2: Convert to fraction form
    51,115.88/70,539.15 = 28,454.82/x
  3. Step 3: Cross multiply
    51,115.88x = 70,539.15 × 28,454.82
  4. Step 4: Simplify right side
    51,115.88x = 2,007,178,816.20
  5. Step 5: Solve for x
    x = 2,007,178,816.20/51,115.88
  6. Step 6: Final answer
    x = 39,267.23

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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.