Home / 77,746.12-107,270.64-43,748

Finding the Fourth Proportional to 77,746.12, 107,270.64 and 43,748

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Solution

The fourth proportional to 77,746.12, 107,270.64 and 43,748 is: 60,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,746.12 : 107,270.64 = 43,748 : x
  2. Step 2: Convert to fraction form
    77,746.12/107,270.64 = 43,748/x
  3. Step 3: Cross multiply
    77,746.12x = 107,270.64 × 43,748
  4. Step 4: Simplify right side
    77,746.12x = 4,692,875,958.72
  5. Step 5: Solve for x
    x = 4,692,875,958.72/77,746.12
  6. Step 6: Final answer
    x = 60,361.55

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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.