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Finding the Fourth Proportional to 68,312.78, 101,790.06 and 60,859.97

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Solution

The fourth proportional to 68,312.78, 101,790.06 and 60,859.97 is: 90,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,312.78 : 101,790.06 = 60,859.97 : x
  2. Step 2: Convert to fraction form
    68,312.78/101,790.06 = 60,859.97/x
  3. Step 3: Cross multiply
    68,312.78x = 101,790.06 × 60,859.97
  4. Step 4: Simplify right side
    68,312.78x = 6,194,939,488.95
  5. Step 5: Solve for x
    x = 6,194,939,488.95/68,312.78
  6. Step 6: Final answer
    x = 90,684.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.