Home / 45,387.07-68,009.47-28,711.88

Finding the Fourth Proportional to 45,387.07, 68,009.47 and 28,711.88

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Solution

The fourth proportional to 45,387.07, 68,009.47 and 28,711.88 is: 43,022.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,387.07 : 68,009.47 = 28,711.88 : x
  2. Step 2: Convert to fraction form
    45,387.07/68,009.47 = 28,711.88/x
  3. Step 3: Cross multiply
    45,387.07x = 68,009.47 × 28,711.88
  4. Step 4: Simplify right side
    45,387.07x = 1,952,679,741.50
  5. Step 5: Solve for x
    x = 1,952,679,741.50/45,387.07
  6. Step 6: Final answer
    x = 43,022.82

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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.