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Finding the Fourth Proportional to 84,000.71, 115,761.49 and 60,085.87

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Solution

The fourth proportional to 84,000.71, 115,761.49 and 60,085.87 is: 82,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.71 : 115,761.49 = 60,085.87 : x
  2. Step 2: Convert to fraction form
    84,000.71/115,761.49 = 60,085.87/x
  3. Step 3: Cross multiply
    84,000.71x = 115,761.49 × 60,085.87
  4. Step 4: Simplify right side
    84,000.71x = 6,955,629,399.53
  5. Step 5: Solve for x
    x = 6,955,629,399.53/84,000.71
  6. Step 6: Final answer
    x = 82,804.41

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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.