Home / 45,009.56-67,430.49-28,147.79

Finding the Fourth Proportional to 45,009.56, 67,430.49 and 28,147.79

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Solution

The fourth proportional to 45,009.56, 67,430.49 and 28,147.79 is: 42,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.56 : 67,430.49 = 28,147.79 : x
  2. Step 2: Convert to fraction form
    45,009.56/67,430.49 = 28,147.79/x
  3. Step 3: Cross multiply
    45,009.56x = 67,430.49 × 28,147.79
  4. Step 4: Simplify right side
    45,009.56x = 1,898,019,272.12
  5. Step 5: Solve for x
    x = 1,898,019,272.12/45,009.56
  6. Step 6: Final answer
    x = 42,169.25

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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.