Home / 65,257.19-90,053.07-38,393.54

Finding the Fourth Proportional to 65,257.19, 90,053.07 and 38,393.54

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Solution

The fourth proportional to 65,257.19, 90,053.07 and 38,393.54 is: 52,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,257.19 : 90,053.07 = 38,393.54 : x
  2. Step 2: Convert to fraction form
    65,257.19/90,053.07 = 38,393.54/x
  3. Step 3: Cross multiply
    65,257.19x = 90,053.07 × 38,393.54
  4. Step 4: Simplify right side
    65,257.19x = 3,457,456,145.17
  5. Step 5: Solve for x
    x = 3,457,456,145.17/65,257.19
  6. Step 6: Final answer
    x = 52,982.00

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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.