Home / 58,666.46-87,960.82-21,221.61

Finding the Fourth Proportional to 58,666.46, 87,960.82 and 21,221.61

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Solution

The fourth proportional to 58,666.46, 87,960.82 and 21,221.61 is: 31,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,666.46 : 87,960.82 = 21,221.61 : x
  2. Step 2: Convert to fraction form
    58,666.46/87,960.82 = 21,221.61/x
  3. Step 3: Cross multiply
    58,666.46x = 87,960.82 × 21,221.61
  4. Step 4: Simplify right side
    58,666.46x = 1,866,670,111.21
  5. Step 5: Solve for x
    x = 1,866,670,111.21/58,666.46
  6. Step 6: Final answer
    x = 31,818.35

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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.