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Finding the Fourth Proportional to 91,331.20, 127,587.20 and 91,331.20

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Solution

The fourth proportional to 91,331.20, 127,587.20 and 91,331.20 is: 127,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.20 : 127,587.20 = 91,331.20 : x
  2. Step 2: Convert to fraction form
    91,331.20/127,587.20 = 91,331.20/x
  3. Step 3: Cross multiply
    91,331.20x = 127,587.20 × 91,331.20
  4. Step 4: Simplify right side
    91,331.20x = 11,652,692,080.64
  5. Step 5: Solve for x
    x = 11,652,692,080.64/91,331.20
  6. Step 6: Final answer
    x = 127,587.20

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.