Home / 72,948.07-100,668.33-39,414.07

Finding the Fourth Proportional to 72,948.07, 100,668.33 and 39,414.07

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Solution

The fourth proportional to 72,948.07, 100,668.33 and 39,414.07 is: 54,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,948.07 : 100,668.33 = 39,414.07 : x
  2. Step 2: Convert to fraction form
    72,948.07/100,668.33 = 39,414.07/x
  3. Step 3: Cross multiply
    72,948.07x = 100,668.33 × 39,414.07
  4. Step 4: Simplify right side
    72,948.07x = 3,967,748,605.40
  5. Step 5: Solve for x
    x = 3,967,748,605.40/72,948.07
  6. Step 6: Final answer
    x = 54,391.41

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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.