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Finding the Fourth Proportional to 81,463.01, 112,414.28 and 47,477.03

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Solution

The fourth proportional to 81,463.01, 112,414.28 and 47,477.03 is: 65,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,463.01 : 112,414.28 = 47,477.03 : x
  2. Step 2: Convert to fraction form
    81,463.01/112,414.28 = 47,477.03/x
  3. Step 3: Cross multiply
    81,463.01x = 112,414.28 × 47,477.03
  4. Step 4: Simplify right side
    81,463.01x = 5,337,095,344.53
  5. Step 5: Solve for x
    x = 5,337,095,344.53/81,463.01
  6. Step 6: Final answer
    x = 65,515.57

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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.