Home / 42,369.87-63,555.18-10,779.97

Finding the Fourth Proportional to 42,369.87, 63,555.18 and 10,779.97

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Solution

The fourth proportional to 42,369.87, 63,555.18 and 10,779.97 is: 16,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.87 : 63,555.18 = 10,779.97 : x
  2. Step 2: Convert to fraction form
    42,369.87/63,555.18 = 10,779.97/x
  3. Step 3: Cross multiply
    42,369.87x = 63,555.18 × 10,779.97
  4. Step 4: Simplify right side
    42,369.87x = 685,122,933.74
  5. Step 5: Solve for x
    x = 685,122,933.74/42,369.87
  6. Step 6: Final answer
    x = 16,170.05

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1.5x scale

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.