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Finding the Fourth Proportional to 65,568.56, 90,526.01 and 45,418.19

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Solution

The fourth proportional to 65,568.56, 90,526.01 and 45,418.19 is: 62,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,568.56 : 90,526.01 = 45,418.19 : x
  2. Step 2: Convert to fraction form
    65,568.56/90,526.01 = 45,418.19/x
  3. Step 3: Cross multiply
    65,568.56x = 90,526.01 × 45,418.19
  4. Step 4: Simplify right side
    65,568.56x = 4,111,526,842.40
  5. Step 5: Solve for x
    x = 4,111,526,842.40/65,568.56
  6. Step 6: Final answer
    x = 62,705.77

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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.