Home / 72,749.24-100,394.02-40,918.20

Finding the Fourth Proportional to 72,749.24, 100,394.02 and 40,918.20

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Solution

The fourth proportional to 72,749.24, 100,394.02 and 40,918.20 is: 56,467.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,749.24 : 100,394.02 = 40,918.20 : x
  2. Step 2: Convert to fraction form
    72,749.24/100,394.02 = 40,918.20/x
  3. Step 3: Cross multiply
    72,749.24x = 100,394.02 × 40,918.20
  4. Step 4: Simplify right side
    72,749.24x = 4,107,942,589.16
  5. Step 5: Solve for x
    x = 4,107,942,589.16/72,749.24
  6. Step 6: Final answer
    x = 56,467.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.