Home / 51,701.05-71,345.89-28,730.79

Finding the Fourth Proportional to 51,701.05, 71,345.89 and 28,730.79

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Solution

The fourth proportional to 51,701.05, 71,345.89 and 28,730.79 is: 39,647.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,701.05 : 71,345.89 = 28,730.79 : x
  2. Step 2: Convert to fraction form
    51,701.05/71,345.89 = 28,730.79/x
  3. Step 3: Cross multiply
    51,701.05x = 71,345.89 × 28,730.79
  4. Step 4: Simplify right side
    51,701.05x = 2,049,823,782.95
  5. Step 5: Solve for x
    x = 2,049,823,782.95/51,701.05
  6. Step 6: Final answer
    x = 39,647.63

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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.