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Finding the Fourth Proportional to 82,050.70, 123,001.80 and 57,102.70

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Solution

The fourth proportional to 82,050.70, 123,001.80 and 57,102.70 is: 85,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,050.70 : 123,001.80 = 57,102.70 : x
  2. Step 2: Convert to fraction form
    82,050.70/123,001.80 = 57,102.70/x
  3. Step 3: Cross multiply
    82,050.70x = 123,001.80 × 57,102.70
  4. Step 4: Simplify right side
    82,050.70x = 7,023,734,884.86
  5. Step 5: Solve for x
    x = 7,023,734,884.86/82,050.70
  6. Step 6: Final answer
    x = 85,602.38

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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.