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Finding the Fourth Proportional to 70,445.09, 105,668.06 and 17,854.73

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Solution

The fourth proportional to 70,445.09, 105,668.06 and 17,854.73 is: 26,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,445.09 : 105,668.06 = 17,854.73 : x
  2. Step 2: Convert to fraction form
    70,445.09/105,668.06 = 17,854.73/x
  3. Step 3: Cross multiply
    70,445.09x = 105,668.06 × 17,854.73
  4. Step 4: Simplify right side
    70,445.09x = 1,886,674,680.92
  5. Step 5: Solve for x
    x = 1,886,674,680.92/70,445.09
  6. Step 6: Final answer
    x = 26,782.20

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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.