Home / 43,450.56-65,127.78-28,439.64

Finding the Fourth Proportional to 43,450.56, 65,127.78 and 28,439.64

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Solution

The fourth proportional to 43,450.56, 65,127.78 and 28,439.64 is: 42,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,450.56 : 65,127.78 = 28,439.64 : x
  2. Step 2: Convert to fraction form
    43,450.56/65,127.78 = 28,439.64/x
  3. Step 3: Cross multiply
    43,450.56x = 65,127.78 × 28,439.64
  4. Step 4: Simplify right side
    43,450.56x = 1,852,210,617.20
  5. Step 5: Solve for x
    x = 1,852,210,617.20/43,450.56
  6. Step 6: Final answer
    x = 42,628.00

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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.