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Finding the Fourth Proportional to 66,856.60, 92,262.36 and 38,562.40

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Solution

The fourth proportional to 66,856.60, 92,262.36 and 38,562.40 is: 53,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.60 : 92,262.36 = 38,562.40 : x
  2. Step 2: Convert to fraction form
    66,856.60/92,262.36 = 38,562.40/x
  3. Step 3: Cross multiply
    66,856.60x = 92,262.36 × 38,562.40
  4. Step 4: Simplify right side
    66,856.60x = 3,557,858,031.26
  5. Step 5: Solve for x
    x = 3,557,858,031.26/66,856.60
  6. Step 6: Final answer
    x = 53,216.26

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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.