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Finding the Fourth Proportional to 85,794.80, 128,692.29 and 23,465.30

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Solution

The fourth proportional to 85,794.80, 128,692.29 and 23,465.30 is: 35,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,794.80 : 128,692.29 = 23,465.30 : x
  2. Step 2: Convert to fraction form
    85,794.80/128,692.29 = 23,465.30/x
  3. Step 3: Cross multiply
    85,794.80x = 128,692.29 × 23,465.30
  4. Step 4: Simplify right side
    85,794.80x = 3,019,802,637.07
  5. Step 5: Solve for x
    x = 3,019,802,637.07/85,794.80
  6. Step 6: Final answer
    x = 35,197.97

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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.