Home / 58,585.85-87,826.15-21,137.12

Finding the Fourth Proportional to 58,585.85, 87,826.15 and 21,137.12

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Solution

The fourth proportional to 58,585.85, 87,826.15 and 21,137.12 is: 31,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,585.85 : 87,826.15 = 21,137.12 : x
  2. Step 2: Convert to fraction form
    58,585.85/87,826.15 = 21,137.12/x
  3. Step 3: Cross multiply
    58,585.85x = 87,826.15 × 21,137.12
  4. Step 4: Simplify right side
    58,585.85x = 1,856,391,379.71
  5. Step 5: Solve for x
    x = 1,856,391,379.71/58,585.85
  6. Step 6: Final answer
    x = 31,686.69

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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.