Home / 97,971.12-135,189.81-57,682.26

Finding the Fourth Proportional to 97,971.12, 135,189.81 and 57,682.26

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Solution

The fourth proportional to 97,971.12, 135,189.81 and 57,682.26 is: 79,595.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,971.12 : 135,189.81 = 57,682.26 : x
  2. Step 2: Convert to fraction form
    97,971.12/135,189.81 = 57,682.26/x
  3. Step 3: Cross multiply
    97,971.12x = 135,189.81 × 57,682.26
  4. Step 4: Simplify right side
    97,971.12x = 7,798,053,769.77
  5. Step 5: Solve for x
    x = 7,798,053,769.77/97,971.12
  6. Step 6: Final answer
    x = 79,595.43

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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.