Home / 97,857.12-135,030.20-57,556.18

Finding the Fourth Proportional to 97,857.12, 135,030.20 and 57,556.18

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Solution

The fourth proportional to 97,857.12, 135,030.20 and 57,556.18 is: 79,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,857.12 : 135,030.20 = 57,556.18 : x
  2. Step 2: Convert to fraction form
    97,857.12/135,030.20 = 57,556.18/x
  3. Step 3: Cross multiply
    97,857.12x = 135,030.20 × 57,556.18
  4. Step 4: Simplify right side
    97,857.12x = 7,771,821,871.28
  5. Step 5: Solve for x
    x = 7,771,821,871.28/97,857.12
  6. Step 6: Final answer
    x = 79,420.10

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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.