Home / 72,830.36-100,448.34-47,675.00

Finding the Fourth Proportional to 72,830.36, 100,448.34 and 47,675.00

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Solution

The fourth proportional to 72,830.36, 100,448.34 and 47,675.00 is: 65,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,830.36 : 100,448.34 = 47,675.00 : x
  2. Step 2: Convert to fraction form
    72,830.36/100,448.34 = 47,675.00/x
  3. Step 3: Cross multiply
    72,830.36x = 100,448.34 × 47,675.00
  4. Step 4: Simplify right side
    72,830.36x = 4,788,874,107.26
  5. Step 5: Solve for x
    x = 4,788,874,107.26/72,830.36
  6. Step 6: Final answer
    x = 65,753.82

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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.