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Finding the Fourth Proportional to 91,304.33, 126,038.77 and 55,505.77

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Solution

The fourth proportional to 91,304.33, 126,038.77 and 55,505.77 is: 76,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,304.33 : 126,038.77 = 55,505.77 : x
  2. Step 2: Convert to fraction form
    91,304.33/126,038.77 = 55,505.77/x
  3. Step 3: Cross multiply
    91,304.33x = 126,038.77 × 55,505.77
  4. Step 4: Simplify right side
    91,304.33x = 6,995,878,524.84
  5. Step 5: Solve for x
    x = 6,995,878,524.84/91,304.33
  6. Step 6: Final answer
    x = 76,621.55

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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.