Home / 57,285.19-85,916.35-19,330.75

Finding the Fourth Proportional to 57,285.19, 85,916.35 and 19,330.75

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Solution

The fourth proportional to 57,285.19, 85,916.35 and 19,330.75 is: 28,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.19 : 85,916.35 = 19,330.75 : x
  2. Step 2: Convert to fraction form
    57,285.19/85,916.35 = 19,330.75/x
  3. Step 3: Cross multiply
    57,285.19x = 85,916.35 × 19,330.75
  4. Step 4: Simplify right side
    57,285.19x = 1,660,827,482.76
  5. Step 5: Solve for x
    x = 1,660,827,482.76/57,285.19
  6. Step 6: Final answer
    x = 28,992.27

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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.