Home / 54,482.08-81,736.29-18,938.26

Finding the Fourth Proportional to 54,482.08, 81,736.29 and 18,938.26

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Solution

The fourth proportional to 54,482.08, 81,736.29 and 18,938.26 is: 28,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,482.08 : 81,736.29 = 18,938.26 : x
  2. Step 2: Convert to fraction form
    54,482.08/81,736.29 = 18,938.26/x
  3. Step 3: Cross multiply
    54,482.08x = 81,736.29 × 18,938.26
  4. Step 4: Simplify right side
    54,482.08x = 1,547,943,394.29
  5. Step 5: Solve for x
    x = 1,547,943,394.29/54,482.08
  6. Step 6: Final answer
    x = 28,411.98

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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.