Home / 51,133.68-76,713.30-40,643.28

Finding the Fourth Proportional to 51,133.68, 76,713.30 and 40,643.28

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Solution

The fourth proportional to 51,133.68, 76,713.30 and 40,643.28 is: 60,975.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,133.68 : 76,713.30 = 40,643.28 : x
  2. Step 2: Convert to fraction form
    51,133.68/76,713.30 = 40,643.28/x
  3. Step 3: Cross multiply
    51,133.68x = 76,713.30 × 40,643.28
  4. Step 4: Simplify right side
    51,133.68x = 3,117,880,131.62
  5. Step 5: Solve for x
    x = 3,117,880,131.62/51,133.68
  6. Step 6: Final answer
    x = 60,975.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.