Home / 77,690.14-107,210.61-47,475.37

Finding the Fourth Proportional to 77,690.14, 107,210.61 and 47,475.37

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Solution

The fourth proportional to 77,690.14, 107,210.61 and 47,475.37 is: 65,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,690.14 : 107,210.61 = 47,475.37 : x
  2. Step 2: Convert to fraction form
    77,690.14/107,210.61 = 47,475.37/x
  3. Step 3: Cross multiply
    77,690.14x = 107,210.61 × 47,475.37
  4. Step 4: Simplify right side
    77,690.14x = 5,089,863,042.15
  5. Step 5: Solve for x
    x = 5,089,863,042.15/77,690.14
  6. Step 6: Final answer
    x = 65,514.92

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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.