Home / 98,876.82-136,457.01-56,441.73

Finding the Fourth Proportional to 98,876.82, 136,457.01 and 56,441.73

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Solution

The fourth proportional to 98,876.82, 136,457.01 and 56,441.73 is: 77,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,876.82 : 136,457.01 = 56,441.73 : x
  2. Step 2: Convert to fraction form
    98,876.82/136,457.01 = 56,441.73/x
  3. Step 3: Cross multiply
    98,876.82x = 136,457.01 × 56,441.73
  4. Step 4: Simplify right side
    98,876.82x = 7,701,869,715.03
  5. Step 5: Solve for x
    x = 7,701,869,715.03/98,876.82
  6. Step 6: Final answer
    x = 77,893.58

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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.