Home / 79,224.18-109,332.36-45,238.20

Finding the Fourth Proportional to 79,224.18, 109,332.36 and 45,238.20

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Solution

The fourth proportional to 79,224.18, 109,332.36 and 45,238.20 is: 62,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,224.18 : 109,332.36 = 45,238.20 : x
  2. Step 2: Convert to fraction form
    79,224.18/109,332.36 = 45,238.20/x
  3. Step 3: Cross multiply
    79,224.18x = 109,332.36 × 45,238.20
  4. Step 4: Simplify right side
    79,224.18x = 4,945,999,168.15
  5. Step 5: Solve for x
    x = 4,945,999,168.15/79,224.18
  6. Step 6: Final answer
    x = 62,430.42

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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.