Home / 65,247.58-90,040.17-38,384.20

Finding the Fourth Proportional to 65,247.58, 90,040.17 and 38,384.20

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Solution

The fourth proportional to 65,247.58, 90,040.17 and 38,384.20 is: 52,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,247.58 : 90,040.17 = 38,384.20 : x
  2. Step 2: Convert to fraction form
    65,247.58/90,040.17 = 38,384.20/x
  3. Step 3: Cross multiply
    65,247.58x = 90,040.17 × 38,384.20
  4. Step 4: Simplify right side
    65,247.58x = 3,456,119,893.31
  5. Step 5: Solve for x
    x = 3,456,119,893.31/65,247.58
  6. Step 6: Final answer
    x = 52,969.32

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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.