Home / 54,585.10-75,322.06-30,711.25

Finding the Fourth Proportional to 54,585.10, 75,322.06 and 30,711.25

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Solution

The fourth proportional to 54,585.10, 75,322.06 and 30,711.25 is: 42,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.10 : 75,322.06 = 30,711.25 : x
  2. Step 2: Convert to fraction form
    54,585.10/75,322.06 = 30,711.25/x
  3. Step 3: Cross multiply
    54,585.10x = 75,322.06 × 30,711.25
  4. Step 4: Simplify right side
    54,585.10x = 2,313,234,615.18
  5. Step 5: Solve for x
    x = 2,313,234,615.18/54,585.10
  6. Step 6: Final answer
    x = 42,378.50

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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.