Home / 91,256.64-136,771.94-51,693.82

Finding the Fourth Proportional to 91,256.64, 136,771.94 and 51,693.82

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Solution

The fourth proportional to 91,256.64, 136,771.94 and 51,693.82 is: 77,476.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,256.64 : 136,771.94 = 51,693.82 : x
  2. Step 2: Convert to fraction form
    91,256.64/136,771.94 = 51,693.82/x
  3. Step 3: Cross multiply
    91,256.64x = 136,771.94 × 51,693.82
  4. Step 4: Simplify right side
    91,256.64x = 7,070,264,047.41
  5. Step 5: Solve for x
    x = 7,070,264,047.41/91,256.64
  6. Step 6: Final answer
    x = 77,476.71

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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.