Home / 51,087.36-70,499.52-28,731.52

Finding the Fourth Proportional to 51,087.36, 70,499.52 and 28,731.52

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Solution

The fourth proportional to 51,087.36, 70,499.52 and 28,731.52 is: 39,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,087.36 : 70,499.52 = 28,731.52 : x
  2. Step 2: Convert to fraction form
    51,087.36/70,499.52 = 28,731.52/x
  3. Step 3: Cross multiply
    51,087.36x = 70,499.52 × 28,731.52
  4. Step 4: Simplify right side
    51,087.36x = 2,025,558,368.87
  5. Step 5: Solve for x
    x = 2,025,558,368.87/51,087.36
  6. Step 6: Final answer
    x = 39,648.91

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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.