Home / 209,591.28-314,386.90-51,821.10

Finding the Fourth Proportional to 209,591.28, 314,386.90 and 51,821.10

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Solution

The fourth proportional to 209,591.28, 314,386.90 and 51,821.10 is: 77,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,591.28 : 314,386.90 = 51,821.10 : x
  2. Step 2: Convert to fraction form
    209,591.28/314,386.90 = 51,821.10/x
  3. Step 3: Cross multiply
    209,591.28x = 314,386.90 × 51,821.10
  4. Step 4: Simplify right side
    209,591.28x = 16,291,874,983.59
  5. Step 5: Solve for x
    x = 16,291,874,983.59/209,591.28
  6. Step 6: Final answer
    x = 77,731.65

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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.