Home / 74,631.71-102,882.96-56,695.58

Finding the Fourth Proportional to 74,631.71, 102,882.96 and 56,695.58

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Solution

The fourth proportional to 74,631.71, 102,882.96 and 56,695.58 is: 78,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,631.71 : 102,882.96 = 56,695.58 : x
  2. Step 2: Convert to fraction form
    74,631.71/102,882.96 = 56,695.58/x
  3. Step 3: Cross multiply
    74,631.71x = 102,882.96 × 56,695.58
  4. Step 4: Simplify right side
    74,631.71x = 5,833,008,960.71
  5. Step 5: Solve for x
    x = 5,833,008,960.71/74,631.71
  6. Step 6: Final answer
    x = 78,157.24

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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.