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Finding the Fourth Proportional to 66,461.66, 91,714.88 and 39,590.27

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Solution

The fourth proportional to 66,461.66, 91,714.88 and 39,590.27 is: 54,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.66 : 91,714.88 = 39,590.27 : x
  2. Step 2: Convert to fraction form
    66,461.66/91,714.88 = 39,590.27/x
  3. Step 3: Cross multiply
    66,461.66x = 91,714.88 × 39,590.27
  4. Step 4: Simplify right side
    66,461.66x = 3,631,016,846.55
  5. Step 5: Solve for x
    x = 3,631,016,846.55/66,461.66
  6. Step 6: Final answer
    x = 54,633.25

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1.5x scale

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.