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Finding the Fourth Proportional to 65,575.84, 90,495.12 and 37,279.84

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Solution

The fourth proportional to 65,575.84, 90,495.12 and 37,279.84 is: 51,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,575.84 : 90,495.12 = 37,279.84 : x
  2. Step 2: Convert to fraction form
    65,575.84/90,495.12 = 37,279.84/x
  3. Step 3: Cross multiply
    65,575.84x = 90,495.12 × 37,279.84
  4. Step 4: Simplify right side
    65,575.84x = 3,373,643,594.38
  5. Step 5: Solve for x
    x = 3,373,643,594.38/65,575.84
  6. Step 6: Final answer
    x = 51,446.44

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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.