Home / 87,700.95-120,998.70-53,674.02

Finding the Fourth Proportional to 87,700.95, 120,998.70 and 53,674.02

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Solution

The fourth proportional to 87,700.95, 120,998.70 and 53,674.02 is: 74,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,700.95 : 120,998.70 = 53,674.02 : x
  2. Step 2: Convert to fraction form
    87,700.95/120,998.70 = 53,674.02/x
  3. Step 3: Cross multiply
    87,700.95x = 120,998.70 × 53,674.02
  4. Step 4: Simplify right side
    87,700.95x = 6,494,486,643.77
  5. Step 5: Solve for x
    x = 6,494,486,643.77/87,700.95
  6. Step 6: Final answer
    x = 74,052.64

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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.