Home / 51,427.55-70,976.59-28,767.80

Finding the Fourth Proportional to 51,427.55, 70,976.59 and 28,767.80

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Solution

The fourth proportional to 51,427.55, 70,976.59 and 28,767.80 is: 39,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,427.55 : 70,976.59 = 28,767.80 : x
  2. Step 2: Convert to fraction form
    51,427.55/70,976.59 = 28,767.80/x
  3. Step 3: Cross multiply
    51,427.55x = 70,976.59 × 28,767.80
  4. Step 4: Simplify right side
    51,427.55x = 2,041,840,451.32
  5. Step 5: Solve for x
    x = 2,041,840,451.32/51,427.55
  6. Step 6: Final answer
    x = 39,703.24

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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.