Home / 69,721.40-96,216.28-37,890.30

Finding the Fourth Proportional to 69,721.40, 96,216.28 and 37,890.30

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Solution

The fourth proportional to 69,721.40, 96,216.28 and 37,890.30 is: 52,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,721.40 : 96,216.28 = 37,890.30 : x
  2. Step 2: Convert to fraction form
    69,721.40/96,216.28 = 37,890.30/x
  3. Step 3: Cross multiply
    69,721.40x = 96,216.28 × 37,890.30
  4. Step 4: Simplify right side
    69,721.40x = 3,645,663,619.36
  5. Step 5: Solve for x
    x = 3,645,663,619.36/69,721.40
  6. Step 6: Final answer
    x = 52,289.02

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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.