Home / 54,678.19-81,943.47-28,401.38

Finding the Fourth Proportional to 54,678.19, 81,943.47 and 28,401.38

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Solution

The fourth proportional to 54,678.19, 81,943.47 and 28,401.38 is: 42,563.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.19 : 81,943.47 = 28,401.38 : x
  2. Step 2: Convert to fraction form
    54,678.19/81,943.47 = 28,401.38/x
  3. Step 3: Cross multiply
    54,678.19x = 81,943.47 × 28,401.38
  4. Step 4: Simplify right side
    54,678.19x = 2,327,308,068.37
  5. Step 5: Solve for x
    x = 2,327,308,068.37/54,678.19
  6. Step 6: Final answer
    x = 42,563.74

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1.5x scale

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.