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Finding the Fourth Proportional to 70,996.95, 97,964.37 and 40,366.80

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Solution

The fourth proportional to 70,996.95, 97,964.37 and 40,366.80 is: 55,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,996.95 : 97,964.37 = 40,366.80 : x
  2. Step 2: Convert to fraction form
    70,996.95/97,964.37 = 40,366.80/x
  3. Step 3: Cross multiply
    70,996.95x = 97,964.37 × 40,366.80
  4. Step 4: Simplify right side
    70,996.95x = 3,954,508,130.92
  5. Step 5: Solve for x
    x = 3,954,508,130.92/70,996.95
  6. Step 6: Final answer
    x = 55,699.69

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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.