Home / 77,538.13-116,305.84-42,458.65

Finding the Fourth Proportional to 77,538.13, 116,305.84 and 42,458.65

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Solution

The fourth proportional to 77,538.13, 116,305.84 and 42,458.65 is: 63,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,538.13 : 116,305.84 = 42,458.65 : x
  2. Step 2: Convert to fraction form
    77,538.13/116,305.84 = 42,458.65/x
  3. Step 3: Cross multiply
    77,538.13x = 116,305.84 × 42,458.65
  4. Step 4: Simplify right side
    77,538.13x = 4,938,188,715.82
  5. Step 5: Solve for x
    x = 4,938,188,715.82/77,538.13
  6. Step 6: Final answer
    x = 63,687.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.