Home / 75,071.09-112,639.59-28,313.03

Finding the Fourth Proportional to 75,071.09, 112,639.59 and 28,313.03

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Solution

The fourth proportional to 75,071.09, 112,639.59 and 28,313.03 is: 42,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,071.09 : 112,639.59 = 28,313.03 : x
  2. Step 2: Convert to fraction form
    75,071.09/112,639.59 = 28,313.03/x
  3. Step 3: Cross multiply
    75,071.09x = 112,639.59 × 28,313.03
  4. Step 4: Simplify right side
    75,071.09x = 3,189,168,090.86
  5. Step 5: Solve for x
    x = 3,189,168,090.86/75,071.09
  6. Step 6: Final answer
    x = 42,481.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.