Home / 77,155.27-115,742.22-27,225.12

Finding the Fourth Proportional to 77,155.27, 115,742.22 and 27,225.12

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Solution

The fourth proportional to 77,155.27, 115,742.22 and 27,225.12 is: 40,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,155.27 : 115,742.22 = 27,225.12 : x
  2. Step 2: Convert to fraction form
    77,155.27/115,742.22 = 27,225.12/x
  3. Step 3: Cross multiply
    77,155.27x = 115,742.22 × 27,225.12
  4. Step 4: Simplify right side
    77,155.27x = 3,151,095,828.57
  5. Step 5: Solve for x
    x = 3,151,095,828.57/77,155.27
  6. Step 6: Final answer
    x = 40,840.97

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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.