Home / 74,940.48-103,416.96-41,405.76

Finding the Fourth Proportional to 74,940.48, 103,416.96 and 41,405.76

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Solution

The fourth proportional to 74,940.48, 103,416.96 and 41,405.76 is: 57,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,940.48 : 103,416.96 = 41,405.76 : x
  2. Step 2: Convert to fraction form
    74,940.48/103,416.96 = 41,405.76/x
  3. Step 3: Cross multiply
    74,940.48x = 103,416.96 × 41,405.76
  4. Step 4: Simplify right side
    74,940.48x = 4,282,057,825.69
  5. Step 5: Solve for x
    x = 4,282,057,825.69/74,940.48
  6. Step 6: Final answer
    x = 57,139.45

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1.5x scale

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.