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Finding the Fourth Proportional to 64,018.71, 96,028.08 and 21,899.19

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Solution

The fourth proportional to 64,018.71, 96,028.08 and 21,899.19 is: 32,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,018.71 : 96,028.08 = 21,899.19 : x
  2. Step 2: Convert to fraction form
    64,018.71/96,028.08 = 21,899.19/x
  3. Step 3: Cross multiply
    64,018.71x = 96,028.08 × 21,899.19
  4. Step 4: Simplify right side
    64,018.71x = 2,102,937,169.26
  5. Step 5: Solve for x
    x = 2,102,937,169.26/64,018.71
  6. Step 6: Final answer
    x = 32,848.79

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1.5x scale

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.