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Finding the Fourth Proportional to 91,322.64, 136,853.64 and 41,278.32

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Solution

The fourth proportional to 91,322.64, 136,853.64 and 41,278.32 is: 61,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,322.64 : 136,853.64 = 41,278.32 : x
  2. Step 2: Convert to fraction form
    91,322.64/136,853.64 = 41,278.32/x
  3. Step 3: Cross multiply
    91,322.64x = 136,853.64 × 41,278.32
  4. Step 4: Simplify right side
    91,322.64x = 5,649,088,345.08
  5. Step 5: Solve for x
    x = 5,649,088,345.08/91,322.64
  6. Step 6: Final answer
    x = 61,858.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.