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Finding the Fourth Proportional to 66,065.52, 91,169.88 and 37,384.92

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Solution

The fourth proportional to 66,065.52, 91,169.88 and 37,384.92 is: 51,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.52 : 91,169.88 = 37,384.92 : x
  2. Step 2: Convert to fraction form
    66,065.52/91,169.88 = 37,384.92/x
  3. Step 3: Cross multiply
    66,065.52x = 91,169.88 × 37,384.92
  4. Step 4: Simplify right side
    66,065.52x = 3,408,378,670.21
  5. Step 5: Solve for x
    x = 3,408,378,670.21/66,065.52
  6. Step 6: Final answer
    x = 51,590.89

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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.