Home / 67,111.75-100,668.23-20,364.63

Finding the Fourth Proportional to 67,111.75, 100,668.23 and 20,364.63

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Solution

The fourth proportional to 67,111.75, 100,668.23 and 20,364.63 is: 30,547.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,111.75 : 100,668.23 = 20,364.63 : x
  2. Step 2: Convert to fraction form
    67,111.75/100,668.23 = 20,364.63/x
  3. Step 3: Cross multiply
    67,111.75x = 100,668.23 × 20,364.63
  4. Step 4: Simplify right side
    67,111.75x = 2,050,071,256.70
  5. Step 5: Solve for x
    x = 2,050,071,256.70/67,111.75
  6. Step 6: Final answer
    x = 30,547.13

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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.