Home / 55,159.93-76,117.49-30,958.64

Finding the Fourth Proportional to 55,159.93, 76,117.49 and 30,958.64

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Solution

The fourth proportional to 55,159.93, 76,117.49 and 30,958.64 is: 42,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.93 : 76,117.49 = 30,958.64 : x
  2. Step 2: Convert to fraction form
    55,159.93/76,117.49 = 30,958.64/x
  3. Step 3: Cross multiply
    55,159.93x = 76,117.49 × 30,958.64
  4. Step 4: Simplify right side
    55,159.93x = 2,356,493,970.61
  5. Step 5: Solve for x
    x = 2,356,493,970.61/55,159.93
  6. Step 6: Final answer
    x = 42,721.12

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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.