Home / 72,318.06-99,804.66-53,284.77

Finding the Fourth Proportional to 72,318.06, 99,804.66 and 53,284.77

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Solution

The fourth proportional to 72,318.06, 99,804.66 and 53,284.77 is: 73,537.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,318.06 : 99,804.66 = 53,284.77 : x
  2. Step 2: Convert to fraction form
    72,318.06/99,804.66 = 53,284.77/x
  3. Step 3: Cross multiply
    72,318.06x = 99,804.66 × 53,284.77
  4. Step 4: Simplify right side
    72,318.06x = 5,318,068,353.03
  5. Step 5: Solve for x
    x = 5,318,068,353.03/72,318.06
  6. Step 6: Final answer
    x = 73,537.21

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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.