Home / 91,260.64-136,904.10-28,086.13

Finding the Fourth Proportional to 91,260.64, 136,904.10 and 28,086.13

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Solution

The fourth proportional to 91,260.64, 136,904.10 and 28,086.13 is: 42,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,260.64 : 136,904.10 = 28,086.13 : x
  2. Step 2: Convert to fraction form
    91,260.64/136,904.10 = 28,086.13/x
  3. Step 3: Cross multiply
    91,260.64x = 136,904.10 × 28,086.13
  4. Step 4: Simplify right side
    91,260.64x = 3,845,106,350.13
  5. Step 5: Solve for x
    x = 3,845,106,350.13/91,260.64
  6. Step 6: Final answer
    x = 42,133.24

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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.