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Finding the Fourth Proportional to 66,482.91, 92,134.55 and 65,221.29

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Solution

The fourth proportional to 66,482.91, 92,134.55 and 65,221.29 is: 90,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.91 : 92,134.55 = 65,221.29 : x
  2. Step 2: Convert to fraction form
    66,482.91/92,134.55 = 65,221.29/x
  3. Step 3: Cross multiply
    66,482.91x = 92,134.55 × 65,221.29
  4. Step 4: Simplify right side
    66,482.91x = 6,009,134,367.62
  5. Step 5: Solve for x
    x = 6,009,134,367.62/66,482.91
  6. Step 6: Final answer
    x = 90,386.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.