Home / 66,237.81-99,335.64-21,856.29

Finding the Fourth Proportional to 66,237.81, 99,335.64 and 21,856.29

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Solution

The fourth proportional to 66,237.81, 99,335.64 and 21,856.29 is: 32,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,237.81 : 99,335.64 = 21,856.29 : x
  2. Step 2: Convert to fraction form
    66,237.81/99,335.64 = 21,856.29/x
  3. Step 3: Cross multiply
    66,237.81x = 99,335.64 × 21,856.29
  4. Step 4: Simplify right side
    66,237.81x = 2,171,108,555.18
  5. Step 5: Solve for x
    x = 2,171,108,555.18/66,237.81
  6. Step 6: Final answer
    x = 32,777.48

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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.