Home / 57,416.96-86,161.28-31,139.84

Finding the Fourth Proportional to 57,416.96, 86,161.28 and 31,139.84

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Solution

The fourth proportional to 57,416.96, 86,161.28 and 31,139.84 is: 46,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,416.96 : 86,161.28 = 31,139.84 : x
  2. Step 2: Convert to fraction form
    57,416.96/86,161.28 = 31,139.84/x
  3. Step 3: Cross multiply
    57,416.96x = 86,161.28 × 31,139.84
  4. Step 4: Simplify right side
    57,416.96x = 2,683,048,473.40
  5. Step 5: Solve for x
    x = 2,683,048,473.40/57,416.96
  6. Step 6: Final answer
    x = 46,729.20

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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.