Home / 77,549.28-107,020.64-43,563.76

Finding the Fourth Proportional to 77,549.28, 107,020.64 and 43,563.76

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Solution

The fourth proportional to 77,549.28, 107,020.64 and 43,563.76 is: 60,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,549.28 : 107,020.64 = 43,563.76 : x
  2. Step 2: Convert to fraction form
    77,549.28/107,020.64 = 43,563.76/x
  3. Step 3: Cross multiply
    77,549.28x = 107,020.64 × 43,563.76
  4. Step 4: Simplify right side
    77,549.28x = 4,662,221,476.01
  5. Step 5: Solve for x
    x = 4,662,221,476.01/77,549.28
  6. Step 6: Final answer
    x = 60,119.47

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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.