Home / 54,842.99-75,683.37-30,971.21

Finding the Fourth Proportional to 54,842.99, 75,683.37 and 30,971.21

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Solution

The fourth proportional to 54,842.99, 75,683.37 and 30,971.21 is: 42,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,842.99 : 75,683.37 = 30,971.21 : x
  2. Step 2: Convert to fraction form
    54,842.99/75,683.37 = 30,971.21/x
  3. Step 3: Cross multiply
    54,842.99x = 75,683.37 × 30,971.21
  4. Step 4: Simplify right side
    54,842.99x = 2,344,005,545.78
  5. Step 5: Solve for x
    x = 2,344,005,545.78/54,842.99
  6. Step 6: Final answer
    x = 42,740.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.