Home / 79,645.16-119,400.78-53,269.40

Finding the Fourth Proportional to 79,645.16, 119,400.78 and 53,269.40

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Solution

The fourth proportional to 79,645.16, 119,400.78 and 53,269.40 is: 79,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,645.16 : 119,400.78 = 53,269.40 : x
  2. Step 2: Convert to fraction form
    79,645.16/119,400.78 = 53,269.40/x
  3. Step 3: Cross multiply
    79,645.16x = 119,400.78 × 53,269.40
  4. Step 4: Simplify right side
    79,645.16x = 6,360,408,034.70
  5. Step 5: Solve for x
    x = 6,360,408,034.70/79,645.16
  6. Step 6: Final answer
    x = 79,859.32

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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.