Home / 77,454.04-116,169-21,298.36

Finding the Fourth Proportional to 77,454.04, 116,169 and 21,298.36

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Solution

The fourth proportional to 77,454.04, 116,169 and 21,298.36 is: 31,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,454.04 : 116,169 = 21,298.36 : x
  2. Step 2: Convert to fraction form
    77,454.04/116,169 = 21,298.36/x
  3. Step 3: Cross multiply
    77,454.04x = 116,169 × 21,298.36
  4. Step 4: Simplify right side
    77,454.04x = 2,474,209,182.84
  5. Step 5: Solve for x
    x = 2,474,209,182.84/77,454.04
  6. Step 6: Final answer
    x = 31,944.22

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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.