Home / 58,108.59-87,167.75-20,689.02

Finding the Fourth Proportional to 58,108.59, 87,167.75 and 20,689.02

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Solution

The fourth proportional to 58,108.59, 87,167.75 and 20,689.02 is: 31,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,108.59 : 87,167.75 = 20,689.02 : x
  2. Step 2: Convert to fraction form
    58,108.59/87,167.75 = 20,689.02/x
  3. Step 3: Cross multiply
    58,108.59x = 87,167.75 × 20,689.02
  4. Step 4: Simplify right side
    58,108.59x = 1,803,415,219.66
  5. Step 5: Solve for x
    x = 1,803,415,219.66/58,108.59
  6. Step 6: Final answer
    x = 31,035.26

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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.