Home / 73,289.12-101,139.28-39,755.36

Finding the Fourth Proportional to 73,289.12, 101,139.28 and 39,755.36

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Solution

The fourth proportional to 73,289.12, 101,139.28 and 39,755.36 is: 54,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,289.12 : 101,139.28 = 39,755.36 : x
  2. Step 2: Convert to fraction form
    73,289.12/101,139.28 = 39,755.36/x
  3. Step 3: Cross multiply
    73,289.12x = 101,139.28 × 39,755.36
  4. Step 4: Simplify right side
    73,289.12x = 4,020,828,486.54
  5. Step 5: Solve for x
    x = 4,020,828,486.54/73,289.12
  6. Step 6: Final answer
    x = 54,862.56

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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.