Home / 79,023.64-109,048.78-45,040.12

Finding the Fourth Proportional to 79,023.64, 109,048.78 and 45,040.12

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Solution

The fourth proportional to 79,023.64, 109,048.78 and 45,040.12 is: 62,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,023.64 : 109,048.78 = 45,040.12 : x
  2. Step 2: Convert to fraction form
    79,023.64/109,048.78 = 45,040.12/x
  3. Step 3: Cross multiply
    79,023.64x = 109,048.78 × 45,040.12
  4. Step 4: Simplify right side
    79,023.64x = 4,911,570,137.05
  5. Step 5: Solve for x
    x = 4,911,570,137.05/79,023.64
  6. Step 6: Final answer
    x = 62,153.18

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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.