Home / 90,775.72-136,167.23-31,617.37

Finding the Fourth Proportional to 90,775.72, 136,167.23 and 31,617.37

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Solution

The fourth proportional to 90,775.72, 136,167.23 and 31,617.37 is: 47,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,775.72 : 136,167.23 = 31,617.37 : x
  2. Step 2: Convert to fraction form
    90,775.72/136,167.23 = 31,617.37/x
  3. Step 3: Cross multiply
    90,775.72x = 136,167.23 × 31,617.37
  4. Step 4: Simplify right side
    90,775.72x = 4,305,249,692.79
  5. Step 5: Solve for x
    x = 4,305,249,692.79/90,775.72
  6. Step 6: Final answer
    x = 47,427.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.