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Finding the Fourth Proportional to 91,797.58, 126,681.87 and 51,520.06

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Solution

The fourth proportional to 91,797.58, 126,681.87 and 51,520.06 is: 71,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,797.58 : 126,681.87 = 51,520.06 : x
  2. Step 2: Convert to fraction form
    91,797.58/126,681.87 = 51,520.06/x
  3. Step 3: Cross multiply
    91,797.58x = 126,681.87 × 51,520.06
  4. Step 4: Simplify right side
    91,797.58x = 6,526,657,543.31
  5. Step 5: Solve for x
    x = 6,526,657,543.31/91,797.58
  6. Step 6: Final answer
    x = 71,098.36

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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.