Home / 83,461.14-125,191.71-20,280.94

Finding the Fourth Proportional to 83,461.14, 125,191.71 and 20,280.94

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Solution

The fourth proportional to 83,461.14, 125,191.71 and 20,280.94 is: 30,421.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,461.14 : 125,191.71 = 20,280.94 : x
  2. Step 2: Convert to fraction form
    83,461.14/125,191.71 = 20,280.94/x
  3. Step 3: Cross multiply
    83,461.14x = 125,191.71 × 20,280.94
  4. Step 4: Simplify right side
    83,461.14x = 2,539,005,559.01
  5. Step 5: Solve for x
    x = 2,539,005,559.01/83,461.14
  6. Step 6: Final answer
    x = 30,421.41

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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.