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Finding the Fourth Proportional to 65,971.44, 91,040.70 and 35,756.76

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Solution

The fourth proportional to 65,971.44, 91,040.70 and 35,756.76 is: 49,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,971.44 : 91,040.70 = 35,756.76 : x
  2. Step 2: Convert to fraction form
    65,971.44/91,040.70 = 35,756.76/x
  3. Step 3: Cross multiply
    65,971.44x = 91,040.70 × 35,756.76
  4. Step 4: Simplify right side
    65,971.44x = 3,255,320,460.13
  5. Step 5: Solve for x
    x = 3,255,320,460.13/65,971.44
  6. Step 6: Final answer
    x = 49,344.39

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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.