Home / 56,131.36-77,466-30,986.08

Finding the Fourth Proportional to 56,131.36, 77,466 and 30,986.08

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Solution

The fourth proportional to 56,131.36, 77,466 and 30,986.08 is: 42,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,131.36 : 77,466 = 30,986.08 : x
  2. Step 2: Convert to fraction form
    56,131.36/77,466 = 30,986.08/x
  3. Step 3: Cross multiply
    56,131.36x = 77,466 × 30,986.08
  4. Step 4: Simplify right side
    56,131.36x = 2,400,367,673.28
  5. Step 5: Solve for x
    x = 2,400,367,673.28/56,131.36
  6. Step 6: Final answer
    x = 42,763.40

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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.