Home / 74,507.70-102,812.85-42,677.94

Finding the Fourth Proportional to 74,507.70, 102,812.85 and 42,677.94

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Solution

The fourth proportional to 74,507.70, 102,812.85 and 42,677.94 is: 58,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,507.70 : 102,812.85 = 42,677.94 : x
  2. Step 2: Convert to fraction form
    74,507.70/102,812.85 = 42,677.94/x
  3. Step 3: Cross multiply
    74,507.70x = 102,812.85 × 42,677.94
  4. Step 4: Simplify right side
    74,507.70x = 4,387,840,643.53
  5. Step 5: Solve for x
    x = 4,387,840,643.53/74,507.70
  6. Step 6: Final answer
    x = 58,891.10

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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.