Home / 72,459.19-99,992.41-40,627.99

Finding the Fourth Proportional to 72,459.19, 99,992.41 and 40,627.99

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Solution

The fourth proportional to 72,459.19, 99,992.41 and 40,627.99 is: 56,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,459.19 : 99,992.41 = 40,627.99 : x
  2. Step 2: Convert to fraction form
    72,459.19/99,992.41 = 40,627.99/x
  3. Step 3: Cross multiply
    72,459.19x = 99,992.41 × 40,627.99
  4. Step 4: Simplify right side
    72,459.19x = 4,062,490,633.56
  5. Step 5: Solve for x
    x = 4,062,490,633.56/72,459.19
  6. Step 6: Final answer
    x = 56,065.91

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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.