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Finding the Fourth Proportional to 70,497.70, 97,290.39 and 38,669.56

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Solution

The fourth proportional to 70,497.70, 97,290.39 and 38,669.56 is: 53,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.70 : 97,290.39 = 38,669.56 : x
  2. Step 2: Convert to fraction form
    70,497.70/97,290.39 = 38,669.56/x
  3. Step 3: Cross multiply
    70,497.70x = 97,290.39 × 38,669.56
  4. Step 4: Simplify right side
    70,497.70x = 3,762,176,573.53
  5. Step 5: Solve for x
    x = 3,762,176,573.53/70,497.70
  6. Step 6: Final answer
    x = 53,365.95

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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.