Home / 42,249.51-63,355.59-12,661.83

Finding the Fourth Proportional to 42,249.51, 63,355.59 and 12,661.83

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Solution

The fourth proportional to 42,249.51, 63,355.59 and 12,661.83 is: 18,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,249.51 : 63,355.59 = 12,661.83 : x
  2. Step 2: Convert to fraction form
    42,249.51/63,355.59 = 12,661.83/x
  3. Step 3: Cross multiply
    42,249.51x = 63,355.59 × 12,661.83
  4. Step 4: Simplify right side
    42,249.51x = 802,197,710.13
  5. Step 5: Solve for x
    x = 802,197,710.13/42,249.51
  6. Step 6: Final answer
    x = 18,987.15

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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.