Home / 84,234.48-116,149.15-57,392.70

Finding the Fourth Proportional to 84,234.48, 116,149.15 and 57,392.70

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Solution

The fourth proportional to 84,234.48, 116,149.15 and 57,392.70 is: 79,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,234.48 : 116,149.15 = 57,392.70 : x
  2. Step 2: Convert to fraction form
    84,234.48/116,149.15 = 57,392.70/x
  3. Step 3: Cross multiply
    84,234.48x = 116,149.15 × 57,392.70
  4. Step 4: Simplify right side
    84,234.48x = 6,666,113,321.21
  5. Step 5: Solve for x
    x = 6,666,113,321.21/84,234.48
  6. Step 6: Final answer
    x = 79,137.59

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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.