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Finding the Fourth Proportional to 81,692.77, 122,555.55 and 37,307.62

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Solution

The fourth proportional to 81,692.77, 122,555.55 and 37,307.62 is: 55,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,692.77 : 122,555.55 = 37,307.62 : x
  2. Step 2: Convert to fraction form
    81,692.77/122,555.55 = 37,307.62/x
  3. Step 3: Cross multiply
    81,692.77x = 122,555.55 × 37,307.62
  4. Step 4: Simplify right side
    81,692.77x = 4,572,255,888.29
  5. Step 5: Solve for x
    x = 4,572,255,888.29/81,692.77
  6. Step 6: Final answer
    x = 55,968.92

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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.