Home / 91,007.20-136,478.40-41,111.20

Finding the Fourth Proportional to 91,007.20, 136,478.40 and 41,111.20

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Solution

The fourth proportional to 91,007.20, 136,478.40 and 41,111.20 is: 61,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,007.20 : 136,478.40 = 41,111.20 : x
  2. Step 2: Convert to fraction form
    91,007.20/136,478.40 = 41,111.20/x
  3. Step 3: Cross multiply
    91,007.20x = 136,478.40 × 41,111.20
  4. Step 4: Simplify right side
    91,007.20x = 5,610,790,798.08
  5. Step 5: Solve for x
    x = 5,610,790,798.08/91,007.20
  6. Step 6: Final answer
    x = 61,652.16

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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.