Home / 72,032.29-108,045.63-19,443.11

Finding the Fourth Proportional to 72,032.29, 108,045.63 and 19,443.11

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Solution

The fourth proportional to 72,032.29, 108,045.63 and 19,443.11 is: 29,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.29 : 108,045.63 = 19,443.11 : x
  2. Step 2: Convert to fraction form
    72,032.29/108,045.63 = 19,443.11/x
  3. Step 3: Cross multiply
    72,032.29x = 108,045.63 × 19,443.11
  4. Step 4: Simplify right side
    72,032.29x = 2,100,742,528.88
  5. Step 5: Solve for x
    x = 2,100,742,528.88/72,032.29
  6. Step 6: Final answer
    x = 29,163.90

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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.