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Finding the Fourth Proportional to 70,118.71, 96,763.81 and 38,287.63

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Solution

The fourth proportional to 70,118.71, 96,763.81 and 38,287.63 is: 52,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,118.71 : 96,763.81 = 38,287.63 : x
  2. Step 2: Convert to fraction form
    70,118.71/96,763.81 = 38,287.63/x
  3. Step 3: Cross multiply
    70,118.71x = 96,763.81 × 38,287.63
  4. Step 4: Simplify right side
    70,118.71x = 3,704,856,954.67
  5. Step 5: Solve for x
    x = 3,704,856,954.67/70,118.71
  6. Step 6: Final answer
    x = 52,836.92

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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.