Home / 53,731.88-80,587.47-51,064.78

Finding the Fourth Proportional to 53,731.88, 80,587.47 and 51,064.78

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Solution

The fourth proportional to 53,731.88, 80,587.47 and 51,064.78 is: 76,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,731.88 : 80,587.47 = 51,064.78 : x
  2. Step 2: Convert to fraction form
    53,731.88/80,587.47 = 51,064.78/x
  3. Step 3: Cross multiply
    53,731.88x = 80,587.47 × 51,064.78
  4. Step 4: Simplify right side
    53,731.88x = 4,115,181,426.31
  5. Step 5: Solve for x
    x = 4,115,181,426.31/53,731.88
  6. Step 6: Final answer
    x = 76,587.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.