Home / 74,429.58-102,712.11-40,437.33

Finding the Fourth Proportional to 74,429.58, 102,712.11 and 40,437.33

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Solution

The fourth proportional to 74,429.58, 102,712.11 and 40,437.33 is: 55,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.58 : 102,712.11 = 40,437.33 : x
  2. Step 2: Convert to fraction form
    74,429.58/102,712.11 = 40,437.33/x
  3. Step 3: Cross multiply
    74,429.58x = 102,712.11 × 40,437.33
  4. Step 4: Simplify right side
    74,429.58x = 4,153,403,487.07
  5. Step 5: Solve for x
    x = 4,153,403,487.07/74,429.58
  6. Step 6: Final answer
    x = 55,803.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.