Home / 56,418.44-77,854.36-30,920.20

Finding the Fourth Proportional to 56,418.44, 77,854.36 and 30,920.20

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Solution

The fourth proportional to 56,418.44, 77,854.36 and 30,920.20 is: 42,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,418.44 : 77,854.36 = 30,920.20 : x
  2. Step 2: Convert to fraction form
    56,418.44/77,854.36 = 30,920.20/x
  3. Step 3: Cross multiply
    56,418.44x = 77,854.36 × 30,920.20
  4. Step 4: Simplify right side
    56,418.44x = 2,407,272,382.07
  5. Step 5: Solve for x
    x = 2,407,272,382.07/56,418.44
  6. Step 6: Final answer
    x = 42,668.18

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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.