Home / 54,623.08-75,387-30,754.40

Finding the Fourth Proportional to 54,623.08, 75,387 and 30,754.40

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Solution

The fourth proportional to 54,623.08, 75,387 and 30,754.40 is: 42,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,623.08 : 75,387 = 30,754.40 : x
  2. Step 2: Convert to fraction form
    54,623.08/75,387 = 30,754.40/x
  3. Step 3: Cross multiply
    54,623.08x = 75,387 × 30,754.40
  4. Step 4: Simplify right side
    54,623.08x = 2,318,481,952.80
  5. Step 5: Solve for x
    x = 2,318,481,952.80/54,623.08
  6. Step 6: Final answer
    x = 42,445.10

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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.