Home / 104,790.05-144,610.28-57,043.76

Finding the Fourth Proportional to 104,790.05, 144,610.28 and 57,043.76

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Solution

The fourth proportional to 104,790.05, 144,610.28 and 57,043.76 is: 78,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,790.05 : 144,610.28 = 57,043.76 : x
  2. Step 2: Convert to fraction form
    104,790.05/144,610.28 = 57,043.76/x
  3. Step 3: Cross multiply
    104,790.05x = 144,610.28 × 57,043.76
  4. Step 4: Simplify right side
    104,790.05x = 8,249,113,382.80
  5. Step 5: Solve for x
    x = 8,249,113,382.80/104,790.05
  6. Step 6: Final answer
    x = 78,720.39

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1.5x scale

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.