Home / 72,027.08-99,402.36-40,202.18

Finding the Fourth Proportional to 72,027.08, 99,402.36 and 40,202.18

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Solution

The fourth proportional to 72,027.08, 99,402.36 and 40,202.18 is: 55,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.08 : 99,402.36 = 40,202.18 : x
  2. Step 2: Convert to fraction form
    72,027.08/99,402.36 = 40,202.18/x
  3. Step 3: Cross multiply
    72,027.08x = 99,402.36 × 40,202.18
  4. Step 4: Simplify right side
    72,027.08x = 3,996,191,569.14
  5. Step 5: Solve for x
    x = 3,996,191,569.14/72,027.08
  6. Step 6: Final answer
    x = 55,481.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.