Home / 72,580.18-108,877.11-28,210.33

Finding the Fourth Proportional to 72,580.18, 108,877.11 and 28,210.33

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Solution

The fourth proportional to 72,580.18, 108,877.11 and 28,210.33 is: 42,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580.18 : 108,877.11 = 28,210.33 : x
  2. Step 2: Convert to fraction form
    72,580.18/108,877.11 = 28,210.33/x
  3. Step 3: Cross multiply
    72,580.18x = 108,877.11 × 28,210.33
  4. Step 4: Simplify right side
    72,580.18x = 3,071,458,658.16
  5. Step 5: Solve for x
    x = 3,071,458,658.16/72,580.18
  6. Step 6: Final answer
    x = 42,318.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.