Home / 69,820.40-96,352.38-37,989.28

Finding the Fourth Proportional to 69,820.40, 96,352.38 and 37,989.28

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Solution

The fourth proportional to 69,820.40, 96,352.38 and 37,989.28 is: 52,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,820.40 : 96,352.38 = 37,989.28 : x
  2. Step 2: Convert to fraction form
    69,820.40/96,352.38 = 37,989.28/x
  3. Step 3: Cross multiply
    69,820.40x = 96,352.38 × 37,989.28
  4. Step 4: Simplify right side
    69,820.40x = 3,660,357,542.49
  5. Step 5: Solve for x
    x = 3,660,357,542.49/69,820.40
  6. Step 6: Final answer
    x = 52,425.33

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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.