Home / 65,436.45-90,291.42-38,575.23

Finding the Fourth Proportional to 65,436.45, 90,291.42 and 38,575.23

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Solution

The fourth proportional to 65,436.45, 90,291.42 and 38,575.23 is: 53,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,436.45 : 90,291.42 = 38,575.23 : x
  2. Step 2: Convert to fraction form
    65,436.45/90,291.42 = 38,575.23/x
  3. Step 3: Cross multiply
    65,436.45x = 90,291.42 × 38,575.23
  4. Step 4: Simplify right side
    65,436.45x = 3,483,012,293.53
  5. Step 5: Solve for x
    x = 3,483,012,293.53/65,436.45
  6. Step 6: Final answer
    x = 53,227.40

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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.