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Finding the Fourth Proportional to 58,090.62, 87,127.68 and 18,642.64

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Solution

The fourth proportional to 58,090.62, 87,127.68 and 18,642.64 is: 27,961.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,090.62 : 87,127.68 = 18,642.64 : x
  2. Step 2: Convert to fraction form
    58,090.62/87,127.68 = 18,642.64/x
  3. Step 3: Cross multiply
    58,090.62x = 87,127.68 × 18,642.64
  4. Step 4: Simplify right side
    58,090.62x = 1,624,289,972.28
  5. Step 5: Solve for x
    x = 1,624,289,972.28/58,090.62
  6. Step 6: Final answer
    x = 27,961.31

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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.