Home / 91,716.15-137,410.20-56,614.80

Finding the Fourth Proportional to 91,716.15, 137,410.20 and 56,614.80

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Solution

The fourth proportional to 91,716.15, 137,410.20 and 56,614.80 is: 84,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,716.15 : 137,410.20 = 56,614.80 : x
  2. Step 2: Convert to fraction form
    91,716.15/137,410.20 = 56,614.80/x
  3. Step 3: Cross multiply
    91,716.15x = 137,410.20 × 56,614.80
  4. Step 4: Simplify right side
    91,716.15x = 7,779,450,990.96
  5. Step 5: Solve for x
    x = 7,779,450,990.96/91,716.15
  6. Step 6: Final answer
    x = 84,820.95

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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.