Home / 54,416.70-81,637.20-42,606.90

Finding the Fourth Proportional to 54,416.70, 81,637.20 and 42,606.90

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Solution

The fourth proportional to 54,416.70, 81,637.20 and 42,606.90 is: 63,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,416.70 : 81,637.20 = 42,606.90 : x
  2. Step 2: Convert to fraction form
    54,416.70/81,637.20 = 42,606.90/x
  3. Step 3: Cross multiply
    54,416.70x = 81,637.20 × 42,606.90
  4. Step 4: Simplify right side
    54,416.70x = 3,478,308,016.68
  5. Step 5: Solve for x
    x = 3,478,308,016.68/54,416.70
  6. Step 6: Final answer
    x = 63,919.86

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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.