Home / 91,888.23-137,835.99-28,750.77

Finding the Fourth Proportional to 91,888.23, 137,835.99 and 28,750.77

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Solution

The fourth proportional to 91,888.23, 137,835.99 and 28,750.77 is: 43,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,888.23 : 137,835.99 = 28,750.77 : x
  2. Step 2: Convert to fraction form
    91,888.23/137,835.99 = 28,750.77/x
  3. Step 3: Cross multiply
    91,888.23x = 137,835.99 × 28,750.77
  4. Step 4: Simplify right side
    91,888.23x = 3,962,890,846.21
  5. Step 5: Solve for x
    x = 3,962,890,846.21/91,888.23
  6. Step 6: Final answer
    x = 43,127.30

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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.