Home / 57,515.16-86,287.06-45,713.46

Finding the Fourth Proportional to 57,515.16, 86,287.06 and 45,713.46

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Solution

The fourth proportional to 57,515.16, 86,287.06 and 45,713.46 is: 68,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.16 : 86,287.06 = 45,713.46 : x
  2. Step 2: Convert to fraction form
    57,515.16/86,287.06 = 45,713.46/x
  3. Step 3: Cross multiply
    57,515.16x = 86,287.06 × 45,713.46
  4. Step 4: Simplify right side
    57,515.16x = 3,944,480,065.83
  5. Step 5: Solve for x
    x = 3,944,480,065.83/57,515.16
  6. Step 6: Final answer
    x = 68,581.57

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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.