Home / 76,365.90-105,439.59-50,932.32

Finding the Fourth Proportional to 76,365.90, 105,439.59 and 50,932.32

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Solution

The fourth proportional to 76,365.90, 105,439.59 and 50,932.32 is: 70,323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,365.90 : 105,439.59 = 50,932.32 : x
  2. Step 2: Convert to fraction form
    76,365.90/105,439.59 = 50,932.32/x
  3. Step 3: Cross multiply
    76,365.90x = 105,439.59 × 50,932.32
  4. Step 4: Simplify right side
    76,365.90x = 5,370,282,938.55
  5. Step 5: Solve for x
    x = 5,370,282,938.55/76,365.90
  6. Step 6: Final answer
    x = 70,323.05

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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.