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Finding the Fourth Proportional to 65,714.72, 90,702.60 and 37,437.20

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Solution

The fourth proportional to 65,714.72, 90,702.60 and 37,437.20 is: 51,672.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,714.72 : 90,702.60 = 37,437.20 : x
  2. Step 2: Convert to fraction form
    65,714.72/90,702.60 = 37,437.20/x
  3. Step 3: Cross multiply
    65,714.72x = 90,702.60 × 37,437.20
  4. Step 4: Simplify right side
    65,714.72x = 3,395,651,376.72
  5. Step 5: Solve for x
    x = 3,395,651,376.72/65,714.72
  6. Step 6: Final answer
    x = 51,672.61

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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.