Home / 72,584.56-108,335.93-70,813.36

Finding the Fourth Proportional to 72,584.56, 108,335.93 and 70,813.36

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Solution

The fourth proportional to 72,584.56, 108,335.93 and 70,813.36 is: 105,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584.56 : 108,335.93 = 70,813.36 : x
  2. Step 2: Convert to fraction form
    72,584.56/108,335.93 = 70,813.36/x
  3. Step 3: Cross multiply
    72,584.56x = 108,335.93 × 70,813.36
  4. Step 4: Simplify right side
    72,584.56x = 7,671,631,212.02
  5. Step 5: Solve for x
    x = 7,671,631,212.02/72,584.56
  6. Step 6: Final answer
    x = 105,692.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.