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Finding the Fourth Proportional to 68,710.28, 94,658.34 and 64,576.84

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Solution

The fourth proportional to 68,710.28, 94,658.34 and 64,576.84 is: 88,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,710.28 : 94,658.34 = 64,576.84 : x
  2. Step 2: Convert to fraction form
    68,710.28/94,658.34 = 64,576.84/x
  3. Step 3: Cross multiply
    68,710.28x = 94,658.34 × 64,576.84
  4. Step 4: Simplify right side
    68,710.28x = 6,112,736,476.85
  5. Step 5: Solve for x
    x = 6,112,736,476.85/68,710.28
  6. Step 6: Final answer
    x = 88,963.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.