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Finding the Fourth Proportional to 85,363.66, 117,752.70 and 49,549.06

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Solution

The fourth proportional to 85,363.66, 117,752.70 and 49,549.06 is: 68,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,363.66 : 117,752.70 = 49,549.06 : x
  2. Step 2: Convert to fraction form
    85,363.66/117,752.70 = 49,549.06/x
  3. Step 3: Cross multiply
    85,363.66x = 117,752.70 × 49,549.06
  4. Step 4: Simplify right side
    85,363.66x = 5,834,535,597.46
  5. Step 5: Solve for x
    x = 5,834,535,597.46/85,363.66
  6. Step 6: Final answer
    x = 68,349.17

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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.