Home / 43,680.81-65,521.23-28,983.63

Finding the Fourth Proportional to 43,680.81, 65,521.23 and 28,983.63

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Solution

The fourth proportional to 43,680.81, 65,521.23 and 28,983.63 is: 43,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,680.81 : 65,521.23 = 28,983.63 : x
  2. Step 2: Convert to fraction form
    43,680.81/65,521.23 = 28,983.63/x
  3. Step 3: Cross multiply
    43,680.81x = 65,521.23 × 28,983.63
  4. Step 4: Simplify right side
    43,680.81x = 1,899,043,087.46
  5. Step 5: Solve for x
    x = 1,899,043,087.46/43,680.81
  6. Step 6: Final answer
    x = 43,475.45

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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.