Home / 87,275.88-120,367.62-53,683.56

Finding the Fourth Proportional to 87,275.88, 120,367.62 and 53,683.56

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Solution

The fourth proportional to 87,275.88, 120,367.62 and 53,683.56 is: 74,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.88 : 120,367.62 = 53,683.56 : x
  2. Step 2: Convert to fraction form
    87,275.88/120,367.62 = 53,683.56/x
  3. Step 3: Cross multiply
    87,275.88x = 120,367.62 × 53,683.56
  4. Step 4: Simplify right side
    87,275.88x = 6,461,762,350.33
  5. Step 5: Solve for x
    x = 6,461,762,350.33/87,275.88
  6. Step 6: Final answer
    x = 74,038.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.