Home / 209,759.13-314,638.46-51,987.59

Finding the Fourth Proportional to 209,759.13, 314,638.46 and 51,987.59

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Solution

The fourth proportional to 209,759.13, 314,638.46 and 51,987.59 is: 77,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,759.13 : 314,638.46 = 51,987.59 : x
  2. Step 2: Convert to fraction form
    209,759.13/314,638.46 = 51,987.59/x
  3. Step 3: Cross multiply
    209,759.13x = 314,638.46 × 51,987.59
  4. Step 4: Simplify right side
    209,759.13x = 16,357,294,798.43
  5. Step 5: Solve for x
    x = 16,357,294,798.43/209,759.13
  6. Step 6: Final answer
    x = 77,981.32

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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.