Home / 90,692.25-136,041.42-40,772.51

Finding the Fourth Proportional to 90,692.25, 136,041.42 and 40,772.51

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Solution

The fourth proportional to 90,692.25, 136,041.42 and 40,772.51 is: 61,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,692.25 : 136,041.42 = 40,772.51 : x
  2. Step 2: Convert to fraction form
    90,692.25/136,041.42 = 40,772.51/x
  3. Step 3: Cross multiply
    90,692.25x = 136,041.42 × 40,772.51
  4. Step 4: Simplify right side
    90,692.25x = 5,546,749,477.16
  5. Step 5: Solve for x
    x = 5,546,749,477.16/90,692.25
  6. Step 6: Final answer
    x = 61,160.13

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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.