Home / 45,692.16-68,612.64-28,272.96

Finding the Fourth Proportional to 45,692.16, 68,612.64 and 28,272.96

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Solution

The fourth proportional to 45,692.16, 68,612.64 and 28,272.96 is: 42,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,692.16 : 68,612.64 = 28,272.96 : x
  2. Step 2: Convert to fraction form
    45,692.16/68,612.64 = 28,272.96/x
  3. Step 3: Cross multiply
    45,692.16x = 68,612.64 × 28,272.96
  4. Step 4: Simplify right side
    45,692.16x = 1,939,882,426.21
  5. Step 5: Solve for x
    x = 1,939,882,426.21/45,692.16
  6. Step 6: Final answer
    x = 42,455.48

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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.