Home / 91,783.08-137,619.20-41,172.84

Finding the Fourth Proportional to 91,783.08, 137,619.20 and 41,172.84

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Solution

The fourth proportional to 91,783.08, 137,619.20 and 41,172.84 is: 61,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,783.08 : 137,619.20 = 41,172.84 : x
  2. Step 2: Convert to fraction form
    91,783.08/137,619.20 = 41,172.84/x
  3. Step 3: Cross multiply
    91,783.08x = 137,619.20 × 41,172.84
  4. Step 4: Simplify right side
    91,783.08x = 5,666,173,302.53
  5. Step 5: Solve for x
    x = 5,666,173,302.53/91,783.08
  6. Step 6: Final answer
    x = 61,734.40

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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.