Home / 51,426.46-70,975.10-28,766.72

Finding the Fourth Proportional to 51,426.46, 70,975.10 and 28,766.72

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Solution

The fourth proportional to 51,426.46, 70,975.10 and 28,766.72 is: 39,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,426.46 : 70,975.10 = 28,766.72 : x
  2. Step 2: Convert to fraction form
    51,426.46/70,975.10 = 28,766.72/x
  3. Step 3: Cross multiply
    51,426.46x = 70,975.10 × 28,766.72
  4. Step 4: Simplify right side
    51,426.46x = 2,041,720,828.67
  5. Step 5: Solve for x
    x = 2,041,720,828.67/51,426.46
  6. Step 6: Final answer
    x = 39,701.76

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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.