Home / 65,799.23-90,809.96-40,322.49

Finding the Fourth Proportional to 65,799.23, 90,809.96 and 40,322.49

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Solution

The fourth proportional to 65,799.23, 90,809.96 and 40,322.49 is: 55,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,799.23 : 90,809.96 = 40,322.49 : x
  2. Step 2: Convert to fraction form
    65,799.23/90,809.96 = 40,322.49/x
  3. Step 3: Cross multiply
    65,799.23x = 90,809.96 × 40,322.49
  4. Step 4: Simplify right side
    65,799.23x = 3,661,683,502.39
  5. Step 5: Solve for x
    x = 3,661,683,502.39/65,799.23
  6. Step 6: Final answer
    x = 55,649.34

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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.