Home / 64,089.45-96,143.29-19,719.81

Finding the Fourth Proportional to 64,089.45, 96,143.29 and 19,719.81

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Solution

The fourth proportional to 64,089.45, 96,143.29 and 19,719.81 is: 29,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,089.45 : 96,143.29 = 19,719.81 : x
  2. Step 2: Convert to fraction form
    64,089.45/96,143.29 = 19,719.81/x
  3. Step 3: Cross multiply
    64,089.45x = 96,143.29 × 19,719.81
  4. Step 4: Simplify right side
    64,089.45x = 1,895,927,362.28
  5. Step 5: Solve for x
    x = 1,895,927,362.28/64,089.45
  6. Step 6: Final answer
    x = 29,582.52

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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.