Home / 67,318.05-100,946.03-19,916.19

Finding the Fourth Proportional to 67,318.05, 100,946.03 and 19,916.19

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Solution

The fourth proportional to 67,318.05, 100,946.03 and 19,916.19 is: 29,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,318.05 : 100,946.03 = 19,916.19 : x
  2. Step 2: Convert to fraction form
    67,318.05/100,946.03 = 19,916.19/x
  3. Step 3: Cross multiply
    67,318.05x = 100,946.03 × 19,916.19
  4. Step 4: Simplify right side
    67,318.05x = 2,010,460,060.86
  5. Step 5: Solve for x
    x = 2,010,460,060.86/67,318.05
  6. Step 6: Final answer
    x = 29,865.10

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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.