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Finding the Fourth Proportional to 57,980.79, 86,983.59 and 17,998.89

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Solution

The fourth proportional to 57,980.79, 86,983.59 and 17,998.89 is: 27,002.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.79 : 86,983.59 = 17,998.89 : x
  2. Step 2: Convert to fraction form
    57,980.79/86,983.59 = 17,998.89/x
  3. Step 3: Cross multiply
    57,980.79x = 86,983.59 × 17,998.89
  4. Step 4: Simplify right side
    57,980.79x = 1,565,608,068.22
  5. Step 5: Solve for x
    x = 1,565,608,068.22/57,980.79
  6. Step 6: Final answer
    x = 27,002.19

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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.