Home / 77,814.85-107,383.08-43,823.20

Finding the Fourth Proportional to 77,814.85, 107,383.08 and 43,823.20

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Solution

The fourth proportional to 77,814.85, 107,383.08 and 43,823.20 is: 60,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,814.85 : 107,383.08 = 43,823.20 : x
  2. Step 2: Convert to fraction form
    77,814.85/107,383.08 = 43,823.20/x
  3. Step 3: Cross multiply
    77,814.85x = 107,383.08 × 43,823.20
  4. Step 4: Simplify right side
    77,814.85x = 4,705,870,191.46
  5. Step 5: Solve for x
    x = 4,705,870,191.46/77,814.85
  6. Step 6: Final answer
    x = 60,475.22

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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.