Home / 81,313.86-112,205.21-47,326.85

Finding the Fourth Proportional to 81,313.86, 112,205.21 and 47,326.85

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Solution

The fourth proportional to 81,313.86, 112,205.21 and 47,326.85 is: 65,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,313.86 : 112,205.21 = 47,326.85 : x
  2. Step 2: Convert to fraction form
    81,313.86/112,205.21 = 47,326.85/x
  3. Step 3: Cross multiply
    81,313.86x = 112,205.21 × 47,326.85
  4. Step 4: Simplify right side
    81,313.86x = 5,310,319,142.89
  5. Step 5: Solve for x
    x = 5,310,319,142.89/81,313.86
  6. Step 6: Final answer
    x = 65,306.45

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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.