Home / 54,518.86-75,370.20-54,019.90

Finding the Fourth Proportional to 54,518.86, 75,370.20 and 54,019.90

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Solution

The fourth proportional to 54,518.86, 75,370.20 and 54,019.90 is: 74,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,518.86 : 75,370.20 = 54,019.90 : x
  2. Step 2: Convert to fraction form
    54,518.86/75,370.20 = 54,019.90/x
  3. Step 3: Cross multiply
    54,518.86x = 75,370.20 × 54,019.90
  4. Step 4: Simplify right side
    54,518.86x = 4,071,490,666.98
  5. Step 5: Solve for x
    x = 4,071,490,666.98/54,518.86
  6. Step 6: Final answer
    x = 74,680.41

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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.