Home / 209,768.12-314,646.42-51,993.08

Finding the Fourth Proportional to 209,768.12, 314,646.42 and 51,993.08

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Solution

The fourth proportional to 209,768.12, 314,646.42 and 51,993.08 is: 77,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,768.12 : 314,646.42 = 51,993.08 : x
  2. Step 2: Convert to fraction form
    209,768.12/314,646.42 = 51,993.08/x
  3. Step 3: Cross multiply
    209,768.12x = 314,646.42 × 51,993.08
  4. Step 4: Simplify right side
    209,768.12x = 16,359,436,486.77
  5. Step 5: Solve for x
    x = 16,359,436,486.77/209,768.12
  6. Step 6: Final answer
    x = 77,988.19

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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.