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Finding the Fourth Proportional to 65,945.54, 98,946 and 28,486.33

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Solution

The fourth proportional to 65,945.54, 98,946 and 28,486.33 is: 42,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.54 : 98,946 = 28,486.33 : x
  2. Step 2: Convert to fraction form
    65,945.54/98,946 = 28,486.33/x
  3. Step 3: Cross multiply
    65,945.54x = 98,946 × 28,486.33
  4. Step 4: Simplify right side
    65,945.54x = 2,818,608,160.82
  5. Step 5: Solve for x
    x = 2,818,608,160.82/65,945.54
  6. Step 6: Final answer
    x = 42,741.45

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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.