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Finding the Fourth Proportional to 74,980.34, 112,468.08 and 19,576.34

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Solution

The fourth proportional to 74,980.34, 112,468.08 and 19,576.34 is: 29,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,980.34 : 112,468.08 = 19,576.34 : x
  2. Step 2: Convert to fraction form
    74,980.34/112,468.08 = 19,576.34/x
  3. Step 3: Cross multiply
    74,980.34x = 112,468.08 × 19,576.34
  4. Step 4: Simplify right side
    74,980.34x = 2,201,713,373.23
  5. Step 5: Solve for x
    x = 2,201,713,373.23/74,980.34
  6. Step 6: Final answer
    x = 29,363.88

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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.