Home / 77,648.06-107,146.92-45,390.22

Finding the Fourth Proportional to 77,648.06, 107,146.92 and 45,390.22

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Solution

The fourth proportional to 77,648.06, 107,146.92 and 45,390.22 is: 62,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,648.06 : 107,146.92 = 45,390.22 : x
  2. Step 2: Convert to fraction form
    77,648.06/107,146.92 = 45,390.22/x
  3. Step 3: Cross multiply
    77,648.06x = 107,146.92 × 45,390.22
  4. Step 4: Simplify right side
    77,648.06x = 4,863,422,271.12
  5. Step 5: Solve for x
    x = 4,863,422,271.12/77,648.06
  6. Step 6: Final answer
    x = 62,634.18

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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.