Home / 69,721.63-96,216.46-37,890.53

Finding the Fourth Proportional to 69,721.63, 96,216.46 and 37,890.53

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Solution

The fourth proportional to 69,721.63, 96,216.46 and 37,890.53 is: 52,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.63 : 96,216.46 = 37,890.53 : x
  2. Step 2: Convert to fraction form
    69,721.63/96,216.46 = 37,890.53/x
  3. Step 3: Cross multiply
    69,721.63x = 96,216.46 × 37,890.53
  4. Step 4: Simplify right side
    69,721.63x = 3,645,692,664.12
  5. Step 5: Solve for x
    x = 3,645,692,664.12/69,721.63
  6. Step 6: Final answer
    x = 52,289.26

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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.