Home / 65,551.35-90,437.54-38,680.41

Finding the Fourth Proportional to 65,551.35, 90,437.54 and 38,680.41

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Solution

The fourth proportional to 65,551.35, 90,437.54 and 38,680.41 is: 53,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.35 : 90,437.54 = 38,680.41 : x
  2. Step 2: Convert to fraction form
    65,551.35/90,437.54 = 38,680.41/x
  3. Step 3: Cross multiply
    65,551.35x = 90,437.54 × 38,680.41
  4. Step 4: Simplify right side
    65,551.35x = 3,498,160,933.19
  5. Step 5: Solve for x
    x = 3,498,160,933.19/65,551.35
  6. Step 6: Final answer
    x = 53,365.20

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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.