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Finding the Fourth Proportional to 70,953.40, 97,914.18 and 39,122.38

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Solution

The fourth proportional to 70,953.40, 97,914.18 and 39,122.38 is: 53,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,953.40 : 97,914.18 = 39,122.38 : x
  2. Step 2: Convert to fraction form
    70,953.40/97,914.18 = 39,122.38/x
  3. Step 3: Cross multiply
    70,953.40x = 97,914.18 × 39,122.38
  4. Step 4: Simplify right side
    70,953.40x = 3,830,635,757.35
  5. Step 5: Solve for x
    x = 3,830,635,757.35/70,953.40
  6. Step 6: Final answer
    x = 53,988.05

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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.