Home / 87,684.42-120,975.95-53,657.40

Finding the Fourth Proportional to 87,684.42, 120,975.95 and 53,657.40

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Solution

The fourth proportional to 87,684.42, 120,975.95 and 53,657.40 is: 74,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.42 : 120,975.95 = 53,657.40 : x
  2. Step 2: Convert to fraction form
    87,684.42/120,975.95 = 53,657.40/x
  3. Step 3: Cross multiply
    87,684.42x = 120,975.95 × 53,657.40
  4. Step 4: Simplify right side
    87,684.42x = 6,491,254,671.24
  5. Step 5: Solve for x
    x = 6,491,254,671.24/87,684.42
  6. Step 6: Final answer
    x = 74,029.74

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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.