Home / 77,634.39-107,129.56-43,637.48

Finding the Fourth Proportional to 77,634.39, 107,129.56 and 43,637.48

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Solution

The fourth proportional to 77,634.39, 107,129.56 and 43,637.48 is: 60,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,634.39 : 107,129.56 = 43,637.48 : x
  2. Step 2: Convert to fraction form
    77,634.39/107,129.56 = 43,637.48/x
  3. Step 3: Cross multiply
    77,634.39x = 107,129.56 × 43,637.48
  4. Step 4: Simplify right side
    77,634.39x = 4,674,863,387.17
  5. Step 5: Solve for x
    x = 4,674,863,387.17/77,634.39
  6. Step 6: Final answer
    x = 60,216.40

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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.