Home / 77,431.48-106,863.50-43,449.14

Finding the Fourth Proportional to 77,431.48, 106,863.50 and 43,449.14

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Solution

The fourth proportional to 77,431.48, 106,863.50 and 43,449.14 is: 59,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,431.48 : 106,863.50 = 43,449.14 : x
  2. Step 2: Convert to fraction form
    77,431.48/106,863.50 = 43,449.14/x
  3. Step 3: Cross multiply
    77,431.48x = 106,863.50 × 43,449.14
  4. Step 4: Simplify right side
    77,431.48x = 4,643,127,172.39
  5. Step 5: Solve for x
    x = 4,643,127,172.39/77,431.48
  6. Step 6: Final answer
    x = 59,964.33

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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.