Home / 91,307.25-126,004.01-55,490.57

Finding the Fourth Proportional to 91,307.25, 126,004.01 and 55,490.57

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Solution

The fourth proportional to 91,307.25, 126,004.01 and 55,490.57 is: 76,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,307.25 : 126,004.01 = 55,490.57 : x
  2. Step 2: Convert to fraction form
    91,307.25/126,004.01 = 55,490.57/x
  3. Step 3: Cross multiply
    91,307.25x = 126,004.01 × 55,490.57
  4. Step 4: Simplify right side
    91,307.25x = 6,992,033,902.23
  5. Step 5: Solve for x
    x = 6,992,033,902.23/91,307.25
  6. Step 6: Final answer
    x = 76,576.98

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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.