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Finding the Fourth Proportional to 65,612.80, 90,558.04 and 41,095

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Solution

The fourth proportional to 65,612.80, 90,558.04 and 41,095 is: 56,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,612.80 : 90,558.04 = 41,095 : x
  2. Step 2: Convert to fraction form
    65,612.80/90,558.04 = 41,095/x
  3. Step 3: Cross multiply
    65,612.80x = 90,558.04 × 41,095
  4. Step 4: Simplify right side
    65,612.80x = 3,721,482,653.80
  5. Step 5: Solve for x
    x = 3,721,482,653.80/65,612.80
  6. Step 6: Final answer
    x = 56,718.85

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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.