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Finding the Fourth Proportional to 91,261.60, 136,892.40 and 41,322.40

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Solution

The fourth proportional to 91,261.60, 136,892.40 and 41,322.40 is: 61,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,261.60 : 136,892.40 = 41,322.40 : x
  2. Step 2: Convert to fraction form
    91,261.60/136,892.40 = 41,322.40/x
  3. Step 3: Cross multiply
    91,261.60x = 136,892.40 × 41,322.40
  4. Step 4: Simplify right side
    91,261.60x = 5,656,722,509.76
  5. Step 5: Solve for x
    x = 5,656,722,509.76/91,261.60
  6. Step 6: Final answer
    x = 61,983.60

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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.