Home / 209,559.79-314,336.61-51,788.24

Finding the Fourth Proportional to 209,559.79, 314,336.61 and 51,788.24

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Solution

The fourth proportional to 209,559.79, 314,336.61 and 51,788.24 is: 77,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,559.79 : 314,336.61 = 51,788.24 : x
  2. Step 2: Convert to fraction form
    209,559.79/314,336.61 = 51,788.24/x
  3. Step 3: Cross multiply
    209,559.79x = 314,336.61 × 51,788.24
  4. Step 4: Simplify right side
    209,559.79x = 16,278,939,799.47
  5. Step 5: Solve for x
    x = 16,278,939,799.47/209,559.79
  6. Step 6: Final answer
    x = 77,681.60

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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.