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Finding the Fourth Proportional to 70,376, 97,119.24 and 52,486.88

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Solution

The fourth proportional to 70,376, 97,119.24 and 52,486.88 is: 72,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376 : 97,119.24 = 52,486.88 : x
  2. Step 2: Convert to fraction form
    70,376/97,119.24 = 52,486.88/x
  3. Step 3: Cross multiply
    70,376x = 97,119.24 × 52,486.88
  4. Step 4: Simplify right side
    70,376x = 5,097,485,895.57
  5. Step 5: Solve for x
    x = 5,097,485,895.57/70,376
  6. Step 6: Final answer
    x = 72,432.16

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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.