Home / 40,578.08-55,908.64-30,326.18

Finding the Fourth Proportional to 40,578.08, 55,908.64 and 30,326.18

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Solution

The fourth proportional to 40,578.08, 55,908.64 and 30,326.18 is: 41,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.08 : 55,908.64 = 30,326.18 : x
  2. Step 2: Convert to fraction form
    40,578.08/55,908.64 = 30,326.18/x
  3. Step 3: Cross multiply
    40,578.08x = 55,908.64 × 30,326.18
  4. Step 4: Simplify right side
    40,578.08x = 1,695,495,480.20
  5. Step 5: Solve for x
    x = 1,695,495,480.20/40,578.08
  6. Step 6: Final answer
    x = 41,783.53

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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.