Home / 72,051.85-99,427.43-40,222.77

Finding the Fourth Proportional to 72,051.85, 99,427.43 and 40,222.77

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Solution

The fourth proportional to 72,051.85, 99,427.43 and 40,222.77 is: 55,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,051.85 : 99,427.43 = 40,222.77 : x
  2. Step 2: Convert to fraction form
    72,051.85/99,427.43 = 40,222.77/x
  3. Step 3: Cross multiply
    72,051.85x = 99,427.43 × 40,222.77
  4. Step 4: Simplify right side
    72,051.85x = 3,999,246,648.58
  5. Step 5: Solve for x
    x = 3,999,246,648.58/72,051.85
  6. Step 6: Final answer
    x = 55,505.12

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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.