Home / 53,428.20-73,724.49-30,774.56

Finding the Fourth Proportional to 53,428.20, 73,724.49 and 30,774.56

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Solution

The fourth proportional to 53,428.20, 73,724.49 and 30,774.56 is: 42,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,428.20 : 73,724.49 = 30,774.56 : x
  2. Step 2: Convert to fraction form
    53,428.20/73,724.49 = 30,774.56/x
  3. Step 3: Cross multiply
    53,428.20x = 73,724.49 × 30,774.56
  4. Step 4: Simplify right side
    53,428.20x = 2,268,838,706.52
  5. Step 5: Solve for x
    x = 2,268,838,706.52/53,428.20
  6. Step 6: Final answer
    x = 42,465.19

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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.