Home / 58,665.46-87,959.32-21,220.61

Finding the Fourth Proportional to 58,665.46, 87,959.32 and 21,220.61

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Solution

The fourth proportional to 58,665.46, 87,959.32 and 21,220.61 is: 31,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,665.46 : 87,959.32 = 21,220.61 : x
  2. Step 2: Convert to fraction form
    58,665.46/87,959.32 = 21,220.61/x
  3. Step 3: Cross multiply
    58,665.46x = 87,959.32 × 21,220.61
  4. Step 4: Simplify right side
    58,665.46x = 1,866,550,319.48
  5. Step 5: Solve for x
    x = 1,866,550,319.48/58,665.46
  6. Step 6: Final answer
    x = 31,816.85

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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.