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Finding the Fourth Proportional to 57,980.71, 86,966.81 and 18,527.23

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Solution

The fourth proportional to 57,980.71, 86,966.81 and 18,527.23 is: 27,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.71 : 86,966.81 = 18,527.23 : x
  2. Step 2: Convert to fraction form
    57,980.71/86,966.81 = 18,527.23/x
  3. Step 3: Cross multiply
    57,980.71x = 86,966.81 × 18,527.23
  4. Step 4: Simplify right side
    57,980.71x = 1,611,254,091.24
  5. Step 5: Solve for x
    x = 1,611,254,091.24/57,980.71
  6. Step 6: Final answer
    x = 27,789.49

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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.