Home / 41,031.78-56,569.01-30,779.22

Finding the Fourth Proportional to 41,031.78, 56,569.01 and 30,779.22

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Solution

The fourth proportional to 41,031.78, 56,569.01 and 30,779.22 is: 42,434.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,031.78 : 56,569.01 = 30,779.22 : x
  2. Step 2: Convert to fraction form
    41,031.78/56,569.01 = 30,779.22/x
  3. Step 3: Cross multiply
    41,031.78x = 56,569.01 × 30,779.22
  4. Step 4: Simplify right side
    41,031.78x = 1,741,149,850.08
  5. Step 5: Solve for x
    x = 1,741,149,850.08/41,031.78
  6. Step 6: Final answer
    x = 42,434.18

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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.