Home / 97,890.80-135,086.49-57,595.31

Finding the Fourth Proportional to 97,890.80, 135,086.49 and 57,595.31

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Solution

The fourth proportional to 97,890.80, 135,086.49 and 57,595.31 is: 79,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,890.80 : 135,086.49 = 57,595.31 : x
  2. Step 2: Convert to fraction form
    97,890.80/135,086.49 = 57,595.31/x
  3. Step 3: Cross multiply
    97,890.80x = 135,086.49 × 57,595.31
  4. Step 4: Simplify right side
    97,890.80x = 7,780,348,268.36
  5. Step 5: Solve for x
    x = 7,780,348,268.36/97,890.80
  6. Step 6: Final answer
    x = 79,479.87

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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.