Home / 91,271.63-136,920.41-28,097.02

Finding the Fourth Proportional to 91,271.63, 136,920.41 and 28,097.02

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Solution

The fourth proportional to 91,271.63, 136,920.41 and 28,097.02 is: 42,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,271.63 : 136,920.41 = 28,097.02 : x
  2. Step 2: Convert to fraction form
    91,271.63/136,920.41 = 28,097.02/x
  3. Step 3: Cross multiply
    91,271.63x = 136,920.41 × 28,097.02
  4. Step 4: Simplify right side
    91,271.63x = 3,847,055,226.12
  5. Step 5: Solve for x
    x = 3,847,055,226.12/91,271.63
  6. Step 6: Final answer
    x = 42,149.52

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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.