Home / 74,346.18-102,603.84-42,521.22

Finding the Fourth Proportional to 74,346.18, 102,603.84 and 42,521.22

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Solution

The fourth proportional to 74,346.18, 102,603.84 and 42,521.22 is: 58,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,346.18 : 102,603.84 = 42,521.22 : x
  2. Step 2: Convert to fraction form
    74,346.18/102,603.84 = 42,521.22/x
  3. Step 3: Cross multiply
    74,346.18x = 102,603.84 × 42,521.22
  4. Step 4: Simplify right side
    74,346.18x = 4,362,840,453.48
  5. Step 5: Solve for x
    x = 4,362,840,453.48/74,346.18
  6. Step 6: Final answer
    x = 58,682.78

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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.