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Finding the Fourth Proportional to 84,038.82, 115,970.64 and 45,797.61

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Solution

The fourth proportional to 84,038.82, 115,970.64 and 45,797.61 is: 63,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,038.82 : 115,970.64 = 45,797.61 : x
  2. Step 2: Convert to fraction form
    84,038.82/115,970.64 = 45,797.61/x
  3. Step 3: Cross multiply
    84,038.82x = 115,970.64 × 45,797.61
  4. Step 4: Simplify right side
    84,038.82x = 5,311,178,142.17
  5. Step 5: Solve for x
    x = 5,311,178,142.17/84,038.82
  6. Step 6: Final answer
    x = 63,199.10

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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.