Home / 51,490.48-71,053.40-28,825.64

Finding the Fourth Proportional to 51,490.48, 71,053.40 and 28,825.64

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Solution

The fourth proportional to 51,490.48, 71,053.40 and 28,825.64 is: 39,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.48 : 71,053.40 = 28,825.64 : x
  2. Step 2: Convert to fraction form
    51,490.48/71,053.40 = 28,825.64/x
  3. Step 3: Cross multiply
    51,490.48x = 71,053.40 × 28,825.64
  4. Step 4: Simplify right side
    51,490.48x = 2,048,159,729.18
  5. Step 5: Solve for x
    x = 2,048,159,729.18/51,490.48
  6. Step 6: Final answer
    x = 39,777.44

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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.