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Finding the Fourth Proportional to 85,012.84, 127,371.48 and 59,658.58

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Solution

The fourth proportional to 85,012.84, 127,371.48 and 59,658.58 is: 89,384.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.84 : 127,371.48 = 59,658.58 : x
  2. Step 2: Convert to fraction form
    85,012.84/127,371.48 = 59,658.58/x
  3. Step 3: Cross multiply
    85,012.84x = 127,371.48 × 59,658.58
  4. Step 4: Simplify right side
    85,012.84x = 7,598,801,629.30
  5. Step 5: Solve for x
    x = 7,598,801,629.30/85,012.84
  6. Step 6: Final answer
    x = 89,384.16

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1.5x scale

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.