Home / 61,141.08-91,711.62-40,359.72

Finding the Fourth Proportional to 61,141.08, 91,711.62 and 40,359.72

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Solution

The fourth proportional to 61,141.08, 91,711.62 and 40,359.72 is: 60,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.08 : 91,711.62 = 40,359.72 : x
  2. Step 2: Convert to fraction form
    61,141.08/91,711.62 = 40,359.72/x
  3. Step 3: Cross multiply
    61,141.08x = 91,711.62 × 40,359.72
  4. Step 4: Simplify right side
    61,141.08x = 3,701,455,303.95
  5. Step 5: Solve for x
    x = 3,701,455,303.95/61,141.08
  6. Step 6: Final answer
    x = 60,539.58

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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.