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Finding the Fourth Proportional to 70,281.32, 96,984.42 and 38,443.88

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Solution

The fourth proportional to 70,281.32, 96,984.42 and 38,443.88 is: 53,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,281.32 : 96,984.42 = 38,443.88 : x
  2. Step 2: Convert to fraction form
    70,281.32/96,984.42 = 38,443.88/x
  3. Step 3: Cross multiply
    70,281.32x = 96,984.42 × 38,443.88
  4. Step 4: Simplify right side
    70,281.32x = 3,728,457,404.35
  5. Step 5: Solve for x
    x = 3,728,457,404.35/70,281.32
  6. Step 6: Final answer
    x = 53,050.47

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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.