Home / 57,285.98-85,962.99-30,990.14

Finding the Fourth Proportional to 57,285.98, 85,962.99 and 30,990.14

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Solution

The fourth proportional to 57,285.98, 85,962.99 and 30,990.14 is: 46,503.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.98 : 85,962.99 = 30,990.14 : x
  2. Step 2: Convert to fraction form
    57,285.98/85,962.99 = 30,990.14/x
  3. Step 3: Cross multiply
    57,285.98x = 85,962.99 × 30,990.14
  4. Step 4: Simplify right side
    57,285.98x = 2,664,005,094.92
  5. Step 5: Solve for x
    x = 2,664,005,094.92/57,285.98
  6. Step 6: Final answer
    x = 46,503.61

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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.