Home / 65,403.44-90,242.77-38,536.14

Finding the Fourth Proportional to 65,403.44, 90,242.77 and 38,536.14

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Solution

The fourth proportional to 65,403.44, 90,242.77 and 38,536.14 is: 53,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,403.44 : 90,242.77 = 38,536.14 : x
  2. Step 2: Convert to fraction form
    65,403.44/90,242.77 = 38,536.14/x
  3. Step 3: Cross multiply
    65,403.44x = 90,242.77 × 38,536.14
  4. Step 4: Simplify right side
    65,403.44x = 3,477,608,018.71
  5. Step 5: Solve for x
    x = 3,477,608,018.71/65,403.44
  6. Step 6: Final answer
    x = 53,171.64

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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.