Home / 45,339.51-68,020.20-28,718.31

Finding the Fourth Proportional to 45,339.51, 68,020.20 and 28,718.31

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Solution

The fourth proportional to 45,339.51, 68,020.20 and 28,718.31 is: 43,084.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,339.51 : 68,020.20 = 28,718.31 : x
  2. Step 2: Convert to fraction form
    45,339.51/68,020.20 = 28,718.31/x
  3. Step 3: Cross multiply
    45,339.51x = 68,020.20 × 28,718.31
  4. Step 4: Simplify right side
    45,339.51x = 1,953,425,189.86
  5. Step 5: Solve for x
    x = 1,953,425,189.86/45,339.51
  6. Step 6: Final answer
    x = 43,084.39

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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.