Home / 257,586.09-386,335.40-68,048.52

Finding the Fourth Proportional to 257,586.09, 386,335.40 and 68,048.52

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Solution

The fourth proportional to 257,586.09, 386,335.40 and 68,048.52 is: 102,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,586.09 : 386,335.40 = 68,048.52 : x
  2. Step 2: Convert to fraction form
    257,586.09/386,335.40 = 68,048.52/x
  3. Step 3: Cross multiply
    257,586.09x = 386,335.40 × 68,048.52
  4. Step 4: Simplify right side
    257,586.09x = 26,289,551,853.37
  5. Step 5: Solve for x
    x = 26,289,551,853.37/257,586.09
  6. Step 6: Final answer
    x = 102,061.22

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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.