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Finding the Fourth Proportional to 69,980.38, 104,970.15 and 25,610.20

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Solution

The fourth proportional to 69,980.38, 104,970.15 and 25,610.20 is: 38,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980.38 : 104,970.15 = 25,610.20 : x
  2. Step 2: Convert to fraction form
    69,980.38/104,970.15 = 25,610.20/x
  3. Step 3: Cross multiply
    69,980.38x = 104,970.15 × 25,610.20
  4. Step 4: Simplify right side
    69,980.38x = 2,688,306,010.68
  5. Step 5: Solve for x
    x = 2,688,306,010.68/69,980.38
  6. Step 6: Final answer
    x = 38,415.14

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1.5x scale

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.