Home / 72,295.02-108,430.23-19,692.20

Finding the Fourth Proportional to 72,295.02, 108,430.23 and 19,692.20

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Solution

The fourth proportional to 72,295.02, 108,430.23 and 19,692.20 is: 29,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295.02 : 108,430.23 = 19,692.20 : x
  2. Step 2: Convert to fraction form
    72,295.02/108,430.23 = 19,692.20/x
  3. Step 3: Cross multiply
    72,295.02x = 108,430.23 × 19,692.20
  4. Step 4: Simplify right side
    72,295.02x = 2,135,229,775.21
  5. Step 5: Solve for x
    x = 2,135,229,775.21/72,295.02
  6. Step 6: Final answer
    x = 29,534.95

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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.