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Finding the Fourth Proportional to 76,162.15, 105,070.67 and 45,930.67

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Solution

The fourth proportional to 76,162.15, 105,070.67 and 45,930.67 is: 63,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,162.15 : 105,070.67 = 45,930.67 : x
  2. Step 2: Convert to fraction form
    76,162.15/105,070.67 = 45,930.67/x
  3. Step 3: Cross multiply
    76,162.15x = 105,070.67 × 45,930.67
  4. Step 4: Simplify right side
    76,162.15x = 4,825,966,270.45
  5. Step 5: Solve for x
    x = 4,825,966,270.45/76,162.15
  6. Step 6: Final answer
    x = 63,364.36

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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.