Home / 97,911.48-135,072.24-57,599.60

Finding the Fourth Proportional to 97,911.48, 135,072.24 and 57,599.60

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Solution

The fourth proportional to 97,911.48, 135,072.24 and 57,599.60 is: 79,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,911.48 : 135,072.24 = 57,599.60 : x
  2. Step 2: Convert to fraction form
    97,911.48/135,072.24 = 57,599.60/x
  3. Step 3: Cross multiply
    97,911.48x = 135,072.24 × 57,599.60
  4. Step 4: Simplify right side
    97,911.48x = 7,780,106,995.10
  5. Step 5: Solve for x
    x = 7,780,106,995.10/97,911.48
  6. Step 6: Final answer
    x = 79,460.62

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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.