Home / 74,531.16-102,867.84-42,721.56

Finding the Fourth Proportional to 74,531.16, 102,867.84 and 42,721.56

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Solution

The fourth proportional to 74,531.16, 102,867.84 and 42,721.56 is: 58,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.16 : 102,867.84 = 42,721.56 : x
  2. Step 2: Convert to fraction form
    74,531.16/102,867.84 = 42,721.56/x
  3. Step 3: Cross multiply
    74,531.16x = 102,867.84 × 42,721.56
  4. Step 4: Simplify right side
    74,531.16x = 4,394,674,598.63
  5. Step 5: Solve for x
    x = 4,394,674,598.63/74,531.16
  6. Step 6: Final answer
    x = 58,964.26

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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.