Home / 72,513.36-100,072.08-45,305.82

Finding the Fourth Proportional to 72,513.36, 100,072.08 and 45,305.82

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Solution

The fourth proportional to 72,513.36, 100,072.08 and 45,305.82 is: 62,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,513.36 : 100,072.08 = 45,305.82 : x
  2. Step 2: Convert to fraction form
    72,513.36/100,072.08 = 45,305.82/x
  3. Step 3: Cross multiply
    72,513.36x = 100,072.08 × 45,305.82
  4. Step 4: Simplify right side
    72,513.36x = 4,533,847,643.51
  5. Step 5: Solve for x
    x = 4,533,847,643.51/72,513.36
  6. Step 6: Final answer
    x = 62,524.31

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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.