Home / 55,919.93-77,167.19-30,426.40

Finding the Fourth Proportional to 55,919.93, 77,167.19 and 30,426.40

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Solution

The fourth proportional to 55,919.93, 77,167.19 and 30,426.40 is: 41,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.93 : 77,167.19 = 30,426.40 : x
  2. Step 2: Convert to fraction form
    55,919.93/77,167.19 = 30,426.40/x
  3. Step 3: Cross multiply
    55,919.93x = 77,167.19 × 30,426.40
  4. Step 4: Simplify right side
    55,919.93x = 2,347,919,679.58
  5. Step 5: Solve for x
    x = 2,347,919,679.58/55,919.93
  6. Step 6: Final answer
    x = 41,987.17

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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.