Home / 85,995.28-128,861.40-36,048.14

Finding the Fourth Proportional to 85,995.28, 128,861.40 and 36,048.14

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Solution

The fourth proportional to 85,995.28, 128,861.40 and 36,048.14 is: 54,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,995.28 : 128,861.40 = 36,048.14 : x
  2. Step 2: Convert to fraction form
    85,995.28/128,861.40 = 36,048.14/x
  3. Step 3: Cross multiply
    85,995.28x = 128,861.40 × 36,048.14
  4. Step 4: Simplify right side
    85,995.28x = 4,645,213,787.80
  5. Step 5: Solve for x
    x = 4,645,213,787.80/85,995.28
  6. Step 6: Final answer
    x = 54,017.08

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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.