Home / 77,467.12-116,187.27-20,541.40

Finding the Fourth Proportional to 77,467.12, 116,187.27 and 20,541.40

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Solution

The fourth proportional to 77,467.12, 116,187.27 and 20,541.40 is: 30,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,467.12 : 116,187.27 = 20,541.40 : x
  2. Step 2: Convert to fraction form
    77,467.12/116,187.27 = 20,541.40/x
  3. Step 3: Cross multiply
    77,467.12x = 116,187.27 × 20,541.40
  4. Step 4: Simplify right side
    77,467.12x = 2,386,649,187.98
  5. Step 5: Solve for x
    x = 2,386,649,187.98/77,467.12
  6. Step 6: Final answer
    x = 30,808.54

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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.