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Finding the Fourth Proportional to 77,304.82, 106,656.40 and 43,308.70

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Solution

The fourth proportional to 77,304.82, 106,656.40 and 43,308.70 is: 59,752.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,304.82 : 106,656.40 = 43,308.70 : x
  2. Step 2: Convert to fraction form
    77,304.82/106,656.40 = 43,308.70/x
  3. Step 3: Cross multiply
    77,304.82x = 106,656.40 × 43,308.70
  4. Step 4: Simplify right side
    77,304.82x = 4,619,150,030.68
  5. Step 5: Solve for x
    x = 4,619,150,030.68/77,304.82
  6. Step 6: Final answer
    x = 59,752.42

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1.5x scale

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.