Home / 54,721.63-75,515.29-30,855.99

Finding the Fourth Proportional to 54,721.63, 75,515.29 and 30,855.99

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Solution

The fourth proportional to 54,721.63, 75,515.29 and 30,855.99 is: 42,580.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,721.63 : 75,515.29 = 30,855.99 : x
  2. Step 2: Convert to fraction form
    54,721.63/75,515.29 = 30,855.99/x
  3. Step 3: Cross multiply
    54,721.63x = 75,515.29 × 30,855.99
  4. Step 4: Simplify right side
    54,721.63x = 2,330,098,814.36
  5. Step 5: Solve for x
    x = 2,330,098,814.36/54,721.63
  6. Step 6: Final answer
    x = 42,580.95

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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.