Home / 76,389.04-105,439.35-49,533.22

Finding the Fourth Proportional to 76,389.04, 105,439.35 and 49,533.22

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Solution

The fourth proportional to 76,389.04, 105,439.35 and 49,533.22 is: 68,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,389.04 : 105,439.35 = 49,533.22 : x
  2. Step 2: Convert to fraction form
    76,389.04/105,439.35 = 49,533.22/x
  3. Step 3: Cross multiply
    76,389.04x = 105,439.35 × 49,533.22
  4. Step 4: Simplify right side
    76,389.04x = 5,222,750,520.21
  5. Step 5: Solve for x
    x = 5,222,750,520.21/76,389.04
  6. Step 6: Final answer
    x = 68,370.42

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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.