Home / 55,867.97-77,097.80-30,717.47

Finding the Fourth Proportional to 55,867.97, 77,097.80 and 30,717.47

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Solution

The fourth proportional to 55,867.97, 77,097.80 and 30,717.47 is: 42,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,867.97 : 77,097.80 = 30,717.47 : x
  2. Step 2: Convert to fraction form
    55,867.97/77,097.80 = 30,717.47/x
  3. Step 3: Cross multiply
    55,867.97x = 77,097.80 × 30,717.47
  4. Step 4: Simplify right side
    55,867.97x = 2,368,249,397.72
  5. Step 5: Solve for x
    x = 2,368,249,397.72/55,867.97
  6. Step 6: Final answer
    x = 42,390.11

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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.