Home / 48,121.86-71,811.80-42,291.02

Finding the Fourth Proportional to 48,121.86, 71,811.80 and 42,291.02

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Solution

The fourth proportional to 48,121.86, 71,811.80 and 42,291.02 is: 63,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,121.86 : 71,811.80 = 42,291.02 : x
  2. Step 2: Convert to fraction form
    48,121.86/71,811.80 = 42,291.02/x
  3. Step 3: Cross multiply
    48,121.86x = 71,811.80 × 42,291.02
  4. Step 4: Simplify right side
    48,121.86x = 3,036,994,270.04
  5. Step 5: Solve for x
    x = 3,036,994,270.04/48,121.86
  6. Step 6: Final answer
    x = 63,110.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.