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Finding the Fourth Proportional to 70,462.68, 97,238.48 and 38,630.90

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Solution

The fourth proportional to 70,462.68, 97,238.48 and 38,630.90 is: 53,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,462.68 : 97,238.48 = 38,630.90 : x
  2. Step 2: Convert to fraction form
    70,462.68/97,238.48 = 38,630.90/x
  3. Step 3: Cross multiply
    70,462.68x = 97,238.48 × 38,630.90
  4. Step 4: Simplify right side
    70,462.68x = 3,756,409,317.69
  5. Step 5: Solve for x
    x = 3,756,409,317.69/70,462.68
  6. Step 6: Final answer
    x = 53,310.62

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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.