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Finding the Fourth Proportional to 65,578.84, 90,498.81 and 37,286.26

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Solution

The fourth proportional to 65,578.84, 90,498.81 and 37,286.26 is: 51,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,578.84 : 90,498.81 = 37,286.26 : x
  2. Step 2: Convert to fraction form
    65,578.84/90,498.81 = 37,286.26/x
  3. Step 3: Cross multiply
    65,578.84x = 90,498.81 × 37,286.26
  4. Step 4: Simplify right side
    65,578.84x = 3,374,362,159.35
  5. Step 5: Solve for x
    x = 3,374,362,159.35/65,578.84
  6. Step 6: Final answer
    x = 51,455.04

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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.