Home / 67,869.34-93,664.12-39,190.21

Finding the Fourth Proportional to 67,869.34, 93,664.12 and 39,190.21

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Solution

The fourth proportional to 67,869.34, 93,664.12 and 39,190.21 is: 54,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,869.34 : 93,664.12 = 39,190.21 : x
  2. Step 2: Convert to fraction form
    67,869.34/93,664.12 = 39,190.21/x
  3. Step 3: Cross multiply
    67,869.34x = 93,664.12 × 39,190.21
  4. Step 4: Simplify right side
    67,869.34x = 3,670,716,532.27
  5. Step 5: Solve for x
    x = 3,670,716,532.27/67,869.34
  6. Step 6: Final answer
    x = 54,085.05

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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.