Home / 91,261.64-136,905.60-28,087.13

Finding the Fourth Proportional to 91,261.64, 136,905.60 and 28,087.13

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Solution

The fourth proportional to 91,261.64, 136,905.60 and 28,087.13 is: 42,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,261.64 : 136,905.60 = 28,087.13 : x
  2. Step 2: Convert to fraction form
    91,261.64/136,905.60 = 28,087.13/x
  3. Step 3: Cross multiply
    91,261.64x = 136,905.60 × 28,087.13
  4. Step 4: Simplify right side
    91,261.64x = 3,845,285,384.93
  5. Step 5: Solve for x
    x = 3,845,285,384.93/91,261.64
  6. Step 6: Final answer
    x = 42,134.74

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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.