Home / 58,087.28-87,139-18,656.48

Finding the Fourth Proportional to 58,087.28, 87,139 and 18,656.48

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Solution

The fourth proportional to 58,087.28, 87,139 and 18,656.48 is: 27,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,087.28 : 87,139 = 18,656.48 : x
  2. Step 2: Convert to fraction form
    58,087.28/87,139 = 18,656.48/x
  3. Step 3: Cross multiply
    58,087.28x = 87,139 × 18,656.48
  4. Step 4: Simplify right side
    58,087.28x = 1,625,707,010.72
  5. Step 5: Solve for x
    x = 1,625,707,010.72/58,087.28
  6. Step 6: Final answer
    x = 27,987.32

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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.