Home / 74,645.36-111,421.91-65,788.32

Finding the Fourth Proportional to 74,645.36, 111,421.91 and 65,788.32

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Solution

The fourth proportional to 74,645.36, 111,421.91 and 65,788.32 is: 98,201.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,645.36 : 111,421.91 = 65,788.32 : x
  2. Step 2: Convert to fraction form
    74,645.36/111,421.91 = 65,788.32/x
  3. Step 3: Cross multiply
    74,645.36x = 111,421.91 × 65,788.32
  4. Step 4: Simplify right side
    74,645.36x = 7,330,260,270.09
  5. Step 5: Solve for x
    x = 7,330,260,270.09/74,645.36
  6. Step 6: Final answer
    x = 98,201.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.