Home / 89,152.72-133,847.86-51,739.65

Finding the Fourth Proportional to 89,152.72, 133,847.86 and 51,739.65

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Solution

The fourth proportional to 89,152.72, 133,847.86 and 51,739.65 is: 77,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,152.72 : 133,847.86 = 51,739.65 : x
  2. Step 2: Convert to fraction form
    89,152.72/133,847.86 = 51,739.65/x
  3. Step 3: Cross multiply
    89,152.72x = 133,847.86 × 51,739.65
  4. Step 4: Simplify right side
    89,152.72x = 6,925,241,429.65
  5. Step 5: Solve for x
    x = 6,925,241,429.65/89,152.72
  6. Step 6: Final answer
    x = 77,678.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.