Home / 54,352.48-81,515.04-21,061.12

Finding the Fourth Proportional to 54,352.48, 81,515.04 and 21,061.12

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Solution

The fourth proportional to 54,352.48, 81,515.04 and 21,061.12 is: 31,586.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,352.48 : 81,515.04 = 21,061.12 : x
  2. Step 2: Convert to fraction form
    54,352.48/81,515.04 = 21,061.12/x
  3. Step 3: Cross multiply
    54,352.48x = 81,515.04 × 21,061.12
  4. Step 4: Simplify right side
    54,352.48x = 1,716,798,039.24
  5. Step 5: Solve for x
    x = 1,716,798,039.24/54,352.48
  6. Step 6: Final answer
    x = 31,586.38

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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.