Home / 79,977.31-110,386.78-57,341.86

Finding the Fourth Proportional to 79,977.31, 110,386.78 and 57,341.86

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Solution

The fourth proportional to 79,977.31, 110,386.78 and 57,341.86 is: 79,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.31 : 110,386.78 = 57,341.86 : x
  2. Step 2: Convert to fraction form
    79,977.31/110,386.78 = 57,341.86/x
  3. Step 3: Cross multiply
    79,977.31x = 110,386.78 × 57,341.86
  4. Step 4: Simplify right side
    79,977.31x = 6,329,782,865.29
  5. Step 5: Solve for x
    x = 6,329,782,865.29/79,977.31
  6. Step 6: Final answer
    x = 79,144.74

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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.