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Finding the Fourth Proportional to 65,908, 90,953.04 and 37,613.08

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Solution

The fourth proportional to 65,908, 90,953.04 and 37,613.08 is: 51,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,908 : 90,953.04 = 37,613.08 : x
  2. Step 2: Convert to fraction form
    65,908/90,953.04 = 37,613.08/x
  3. Step 3: Cross multiply
    65,908x = 90,953.04 × 37,613.08
  4. Step 4: Simplify right side
    65,908x = 3,421,023,969.76
  5. Step 5: Solve for x
    x = 3,421,023,969.76/65,908
  6. Step 6: Final answer
    x = 51,906.05

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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.