Home / 209,742.96-314,619.90-51,969.12

Finding the Fourth Proportional to 209,742.96, 314,619.90 and 51,969.12

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Solution

The fourth proportional to 209,742.96, 314,619.90 and 51,969.12 is: 77,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,742.96 : 314,619.90 = 51,969.12 : x
  2. Step 2: Convert to fraction form
    209,742.96/314,619.90 = 51,969.12/x
  3. Step 3: Cross multiply
    209,742.96x = 314,619.90 × 51,969.12
  4. Step 4: Simplify right side
    209,742.96x = 16,350,519,337.49
  5. Step 5: Solve for x
    x = 16,350,519,337.49/209,742.96
  6. Step 6: Final answer
    x = 77,955.03

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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.