Home / 93,814.24-129,451.80-74,742.39

Finding the Fourth Proportional to 93,814.24, 129,451.80 and 74,742.39

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Solution

The fourth proportional to 93,814.24, 129,451.80 and 74,742.39 is: 103,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,814.24 : 129,451.80 = 74,742.39 : x
  2. Step 2: Convert to fraction form
    93,814.24/129,451.80 = 74,742.39/x
  3. Step 3: Cross multiply
    93,814.24x = 129,451.80 × 74,742.39
  4. Step 4: Simplify right side
    93,814.24x = 9,675,536,921.80
  5. Step 5: Solve for x
    x = 9,675,536,921.80/93,814.24
  6. Step 6: Final answer
    x = 103,135.06

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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.