Home / 72,462.96-99,998.79-40,202.47

Finding the Fourth Proportional to 72,462.96, 99,998.79 and 40,202.47

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Solution

The fourth proportional to 72,462.96, 99,998.79 and 40,202.47 is: 55,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.96 : 99,998.79 = 40,202.47 : x
  2. Step 2: Convert to fraction form
    72,462.96/99,998.79 = 40,202.47/x
  3. Step 3: Cross multiply
    72,462.96x = 99,998.79 × 40,202.47
  4. Step 4: Simplify right side
    72,462.96x = 4,020,197,654.01
  5. Step 5: Solve for x
    x = 4,020,197,654.01/72,462.96
  6. Step 6: Final answer
    x = 55,479.35

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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.