Home / 74,564.48-102,903.24-42,738.68

Finding the Fourth Proportional to 74,564.48, 102,903.24 and 42,738.68

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Solution

The fourth proportional to 74,564.48, 102,903.24 and 42,738.68 is: 58,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,564.48 : 102,903.24 = 42,738.68 : x
  2. Step 2: Convert to fraction form
    74,564.48/102,903.24 = 42,738.68/x
  3. Step 3: Cross multiply
    74,564.48x = 102,903.24 × 42,738.68
  4. Step 4: Simplify right side
    74,564.48x = 4,397,948,645.32
  5. Step 5: Solve for x
    x = 4,397,948,645.32/74,564.48
  6. Step 6: Final answer
    x = 58,981.82

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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.