Home / 74,282.56-102,503.28-42,451.36

Finding the Fourth Proportional to 74,282.56, 102,503.28 and 42,451.36

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Solution

The fourth proportional to 74,282.56, 102,503.28 and 42,451.36 is: 58,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282.56 : 102,503.28 = 42,451.36 : x
  2. Step 2: Convert to fraction form
    74,282.56/102,503.28 = 42,451.36/x
  3. Step 3: Cross multiply
    74,282.56x = 102,503.28 × 42,451.36
  4. Step 4: Simplify right side
    74,282.56x = 4,351,403,640.46
  5. Step 5: Solve for x
    x = 4,351,403,640.46/74,282.56
  6. Step 6: Final answer
    x = 58,579.07

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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.