Home / 50,975.12-70,349.28-28,315.28

Finding the Fourth Proportional to 50,975.12, 70,349.28 and 28,315.28

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Solution

The fourth proportional to 50,975.12, 70,349.28 and 28,315.28 is: 39,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,975.12 : 70,349.28 = 28,315.28 : x
  2. Step 2: Convert to fraction form
    50,975.12/70,349.28 = 28,315.28/x
  3. Step 3: Cross multiply
    50,975.12x = 70,349.28 × 28,315.28
  4. Step 4: Simplify right side
    50,975.12x = 1,991,959,561.00
  5. Step 5: Solve for x
    x = 1,991,959,561.00/50,975.12
  6. Step 6: Final answer
    x = 39,077.09

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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.