Home / 45,999.24-69,086.40-28,590.72

Finding the Fourth Proportional to 45,999.24, 69,086.40 and 28,590.72

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Solution

The fourth proportional to 45,999.24, 69,086.40 and 28,590.72 is: 42,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,999.24 : 69,086.40 = 28,590.72 : x
  2. Step 2: Convert to fraction form
    45,999.24/69,086.40 = 28,590.72/x
  3. Step 3: Cross multiply
    45,999.24x = 69,086.40 × 28,590.72
  4. Step 4: Simplify right side
    45,999.24x = 1,975,229,918.21
  5. Step 5: Solve for x
    x = 1,975,229,918.21/45,999.24
  6. Step 6: Final answer
    x = 42,940.49

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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.