Home / 77,078.22-115,617.33-39,632.46

Finding the Fourth Proportional to 77,078.22, 115,617.33 and 39,632.46

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Solution

The fourth proportional to 77,078.22, 115,617.33 and 39,632.46 is: 59,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,078.22 : 115,617.33 = 39,632.46 : x
  2. Step 2: Convert to fraction form
    77,078.22/115,617.33 = 39,632.46/x
  3. Step 3: Cross multiply
    77,078.22x = 115,617.33 × 39,632.46
  4. Step 4: Simplify right side
    77,078.22x = 4,582,199,206.53
  5. Step 5: Solve for x
    x = 4,582,199,206.53/77,078.22
  6. Step 6: Final answer
    x = 59,448.69

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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.