Home / 77,817.40-107,388.21-45,546.16

Finding the Fourth Proportional to 77,817.40, 107,388.21 and 45,546.16

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Solution

The fourth proportional to 77,817.40, 107,388.21 and 45,546.16 is: 62,853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,817.40 : 107,388.21 = 45,546.16 : x
  2. Step 2: Convert to fraction form
    77,817.40/107,388.21 = 45,546.16/x
  3. Step 3: Cross multiply
    77,817.40x = 107,388.21 × 45,546.16
  4. Step 4: Simplify right side
    77,817.40x = 4,891,120,594.77
  5. Step 5: Solve for x
    x = 4,891,120,594.77/77,817.40
  6. Step 6: Final answer
    x = 62,853.82

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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.