Home / 57,756.24-86,636.80-18,312.48

Finding the Fourth Proportional to 57,756.24, 86,636.80 and 18,312.48

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Solution

The fourth proportional to 57,756.24, 86,636.80 and 18,312.48 is: 27,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,756.24 : 86,636.80 = 18,312.48 : x
  2. Step 2: Convert to fraction form
    57,756.24/86,636.80 = 18,312.48/x
  3. Step 3: Cross multiply
    57,756.24x = 86,636.80 × 18,312.48
  4. Step 4: Simplify right side
    57,756.24x = 1,586,534,667.26
  5. Step 5: Solve for x
    x = 1,586,534,667.26/57,756.24
  6. Step 6: Final answer
    x = 27,469.49

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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.