Home / 64,857.18-97,288.71-19,875.30

Finding the Fourth Proportional to 64,857.18, 97,288.71 and 19,875.30

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Solution

The fourth proportional to 64,857.18, 97,288.71 and 19,875.30 is: 29,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,857.18 : 97,288.71 = 19,875.30 : x
  2. Step 2: Convert to fraction form
    64,857.18/97,288.71 = 19,875.30/x
  3. Step 3: Cross multiply
    64,857.18x = 97,288.71 × 19,875.30
  4. Step 4: Simplify right side
    64,857.18x = 1,933,642,297.86
  5. Step 5: Solve for x
    x = 1,933,642,297.86/64,857.18
  6. Step 6: Final answer
    x = 29,813.85

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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.