Home / 72,477.10-108,702.93-19,169.60

Finding the Fourth Proportional to 72,477.10, 108,702.93 and 19,169.60

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Solution

The fourth proportional to 72,477.10, 108,702.93 and 19,169.60 is: 28,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477.10 : 108,702.93 = 19,169.60 : x
  2. Step 2: Convert to fraction form
    72,477.10/108,702.93 = 19,169.60/x
  3. Step 3: Cross multiply
    72,477.10x = 108,702.93 × 19,169.60
  4. Step 4: Simplify right side
    72,477.10x = 2,083,791,686.93
  5. Step 5: Solve for x
    x = 2,083,791,686.93/72,477.10
  6. Step 6: Final answer
    x = 28,751.04

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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.