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Finding the Fourth Proportional to 74,999.30, 112,500.15 and 19,595.30

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Solution

The fourth proportional to 74,999.30, 112,500.15 and 19,595.30 is: 29,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,999.30 : 112,500.15 = 19,595.30 : x
  2. Step 2: Convert to fraction form
    74,999.30/112,500.15 = 19,595.30/x
  3. Step 3: Cross multiply
    74,999.30x = 112,500.15 × 19,595.30
  4. Step 4: Simplify right side
    74,999.30x = 2,204,474,189.30
  5. Step 5: Solve for x
    x = 2,204,474,189.30/74,999.30
  6. Step 6: Final answer
    x = 29,393.26

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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.