Home / 64,278.36-96,417.54-19,905.50

Finding the Fourth Proportional to 64,278.36, 96,417.54 and 19,905.50

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Solution

The fourth proportional to 64,278.36, 96,417.54 and 19,905.50 is: 29,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,278.36 : 96,417.54 = 19,905.50 : x
  2. Step 2: Convert to fraction form
    64,278.36/96,417.54 = 19,905.50/x
  3. Step 3: Cross multiply
    64,278.36x = 96,417.54 × 19,905.50
  4. Step 4: Simplify right side
    64,278.36x = 1,919,239,041.17
  5. Step 5: Solve for x
    x = 1,919,239,041.17/64,278.36
  6. Step 6: Final answer
    x = 29,858.25

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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.