Home / 75,426.38-113,164.14-35,978.36

Finding the Fourth Proportional to 75,426.38, 113,164.14 and 35,978.36

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Solution

The fourth proportional to 75,426.38, 113,164.14 and 35,978.36 is: 53,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,426.38 : 113,164.14 = 35,978.36 : x
  2. Step 2: Convert to fraction form
    75,426.38/113,164.14 = 35,978.36/x
  3. Step 3: Cross multiply
    75,426.38x = 113,164.14 × 35,978.36
  4. Step 4: Simplify right side
    75,426.38x = 4,071,460,168.01
  5. Step 5: Solve for x
    x = 4,071,460,168.01/75,426.38
  6. Step 6: Final answer
    x = 53,979.26

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1.5x scale

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.