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Finding the Fourth Proportional to 65,994.98, 91,066.26 and 40,502.42

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Solution

The fourth proportional to 65,994.98, 91,066.26 and 40,502.42 is: 55,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,994.98 : 91,066.26 = 40,502.42 : x
  2. Step 2: Convert to fraction form
    65,994.98/91,066.26 = 40,502.42/x
  3. Step 3: Cross multiply
    65,994.98x = 91,066.26 × 40,502.42
  4. Step 4: Simplify right side
    65,994.98x = 3,688,403,910.35
  5. Step 5: Solve for x
    x = 3,688,403,910.35/65,994.98
  6. Step 6: Final answer
    x = 55,889.16

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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.