Home / 51,345.43-70,856.34-28,684.21

Finding the Fourth Proportional to 51,345.43, 70,856.34 and 28,684.21

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Solution

The fourth proportional to 51,345.43, 70,856.34 and 28,684.21 is: 39,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.43 : 70,856.34 = 28,684.21 : x
  2. Step 2: Convert to fraction form
    51,345.43/70,856.34 = 28,684.21/x
  3. Step 3: Cross multiply
    51,345.43x = 70,856.34 × 28,684.21
  4. Step 4: Simplify right side
    51,345.43x = 2,032,458,136.39
  5. Step 5: Solve for x
    x = 2,032,458,136.39/51,345.43
  6. Step 6: Final answer
    x = 39,584.01

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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.