Home / 53,187.21-79,794.63-19,909.89

Finding the Fourth Proportional to 53,187.21, 79,794.63 and 19,909.89

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Solution

The fourth proportional to 53,187.21, 79,794.63 and 19,909.89 is: 29,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.21 : 79,794.63 = 19,909.89 : x
  2. Step 2: Convert to fraction form
    53,187.21/79,794.63 = 19,909.89/x
  3. Step 3: Cross multiply
    53,187.21x = 79,794.63 × 19,909.89
  4. Step 4: Simplify right side
    53,187.21x = 1,588,702,305.89
  5. Step 5: Solve for x
    x = 1,588,702,305.89/53,187.21
  6. Step 6: Final answer
    x = 29,870.01

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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.