Home / 89,457.68-133,980.78-51,924.80

Finding the Fourth Proportional to 89,457.68, 133,980.78 and 51,924.80

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Solution

The fourth proportional to 89,457.68, 133,980.78 and 51,924.80 is: 77,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,457.68 : 133,980.78 = 51,924.80 : x
  2. Step 2: Convert to fraction form
    89,457.68/133,980.78 = 51,924.80/x
  3. Step 3: Cross multiply
    89,457.68x = 133,980.78 × 51,924.80
  4. Step 4: Simplify right side
    89,457.68x = 6,956,925,205.34
  5. Step 5: Solve for x
    x = 6,956,925,205.34/89,457.68
  6. Step 6: Final answer
    x = 77,767.78

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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.