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Finding the Fourth Proportional to 65,036.99, 89,765.52 and 39,537.95

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Solution

The fourth proportional to 65,036.99, 89,765.52 and 39,537.95 is: 54,571.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,036.99 : 89,765.52 = 39,537.95 : x
  2. Step 2: Convert to fraction form
    65,036.99/89,765.52 = 39,537.95/x
  3. Step 3: Cross multiply
    65,036.99x = 89,765.52 × 39,537.95
  4. Step 4: Simplify right side
    65,036.99x = 3,549,144,549.32
  5. Step 5: Solve for x
    x = 3,549,144,549.32/65,036.99
  6. Step 6: Final answer
    x = 54,571.17

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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.