Home / 83,420.84-115,122.12-45,692.66

Finding the Fourth Proportional to 83,420.84, 115,122.12 and 45,692.66

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Solution

The fourth proportional to 83,420.84, 115,122.12 and 45,692.66 is: 63,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.84 : 115,122.12 = 45,692.66 : x
  2. Step 2: Convert to fraction form
    83,420.84/115,122.12 = 45,692.66/x
  3. Step 3: Cross multiply
    83,420.84x = 115,122.12 × 45,692.66
  4. Step 4: Simplify right side
    83,420.84x = 5,260,235,887.64
  5. Step 5: Solve for x
    x = 5,260,235,887.64/83,420.84
  6. Step 6: Final answer
    x = 63,056.62

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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.