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Finding the Fourth Proportional to 70,518.28, 97,300.02 and 40,693

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Solution

The fourth proportional to 70,518.28, 97,300.02 and 40,693 is: 56,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,518.28 : 97,300.02 = 40,693 : x
  2. Step 2: Convert to fraction form
    70,518.28/97,300.02 = 40,693/x
  3. Step 3: Cross multiply
    70,518.28x = 97,300.02 × 40,693
  4. Step 4: Simplify right side
    70,518.28x = 3,959,429,713.86
  5. Step 5: Solve for x
    x = 3,959,429,713.86/70,518.28
  6. Step 6: Final answer
    x = 56,147.57

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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.