Home / 65,370.33-90,181.08-38,499.99

Finding the Fourth Proportional to 65,370.33, 90,181.08 and 38,499.99

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Solution

The fourth proportional to 65,370.33, 90,181.08 and 38,499.99 is: 53,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370.33 : 90,181.08 = 38,499.99 : x
  2. Step 2: Convert to fraction form
    65,370.33/90,181.08 = 38,499.99/x
  3. Step 3: Cross multiply
    65,370.33x = 90,181.08 × 38,499.99
  4. Step 4: Simplify right side
    65,370.33x = 3,471,970,678.19
  5. Step 5: Solve for x
    x = 3,471,970,678.19/65,370.33
  6. Step 6: Final answer
    x = 53,112.33

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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.