Home / 91,278.64-136,933.53-40,696.02

Finding the Fourth Proportional to 91,278.64, 136,933.53 and 40,696.02

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Solution

The fourth proportional to 91,278.64, 136,933.53 and 40,696.02 is: 61,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,278.64 : 136,933.53 = 40,696.02 : x
  2. Step 2: Convert to fraction form
    91,278.64/136,933.53 = 40,696.02/x
  3. Step 3: Cross multiply
    91,278.64x = 136,933.53 × 40,696.02
  4. Step 4: Simplify right side
    91,278.64x = 5,572,649,472.07
  5. Step 5: Solve for x
    x = 5,572,649,472.07/91,278.64
  6. Step 6: Final answer
    x = 61,050.97

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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.