Home / 57,769.80-86,661.45-18,330.90

Finding the Fourth Proportional to 57,769.80, 86,661.45 and 18,330.90

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Solution

The fourth proportional to 57,769.80, 86,661.45 and 18,330.90 is: 27,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.80 : 86,661.45 = 18,330.90 : x
  2. Step 2: Convert to fraction form
    57,769.80/86,661.45 = 18,330.90/x
  3. Step 3: Cross multiply
    57,769.80x = 86,661.45 × 18,330.90
  4. Step 4: Simplify right side
    57,769.80x = 1,588,582,373.81
  5. Step 5: Solve for x
    x = 1,588,582,373.81/57,769.80
  6. Step 6: Final answer
    x = 27,498.49

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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.