Home / 76,783.73-105,913.05-52,868.87

Finding the Fourth Proportional to 76,783.73, 105,913.05 and 52,868.87

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Solution

The fourth proportional to 76,783.73, 105,913.05 and 52,868.87 is: 72,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,783.73 : 105,913.05 = 52,868.87 : x
  2. Step 2: Convert to fraction form
    76,783.73/105,913.05 = 52,868.87/x
  3. Step 3: Cross multiply
    76,783.73x = 105,913.05 × 52,868.87
  4. Step 4: Simplify right side
    76,783.73x = 5,599,503,271.75
  5. Step 5: Solve for x
    x = 5,599,503,271.75/76,783.73
  6. Step 6: Final answer
    x = 72,925.65

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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.