Home / 72,417.10-108,633.14-19,826.58

Finding the Fourth Proportional to 72,417.10, 108,633.14 and 19,826.58

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Solution

The fourth proportional to 72,417.10, 108,633.14 and 19,826.58 is: 29,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,417.10 : 108,633.14 = 19,826.58 : x
  2. Step 2: Convert to fraction form
    72,417.10/108,633.14 = 19,826.58/x
  3. Step 3: Cross multiply
    72,417.10x = 108,633.14 × 19,826.58
  4. Step 4: Simplify right side
    72,417.10x = 2,153,823,640.86
  5. Step 5: Solve for x
    x = 2,153,823,640.86/72,417.10
  6. Step 6: Final answer
    x = 29,741.92

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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.