Home / 61,345.09-91,980.47-40,013.74

Finding the Fourth Proportional to 61,345.09, 91,980.47 and 40,013.74

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Solution

The fourth proportional to 61,345.09, 91,980.47 and 40,013.74 is: 59,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,345.09 : 91,980.47 = 40,013.74 : x
  2. Step 2: Convert to fraction form
    61,345.09/91,980.47 = 40,013.74/x
  3. Step 3: Cross multiply
    61,345.09x = 91,980.47 × 40,013.74
  4. Step 4: Simplify right side
    61,345.09x = 3,680,482,481.74
  5. Step 5: Solve for x
    x = 3,680,482,481.74/61,345.09
  6. Step 6: Final answer
    x = 59,996.37

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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.