Home / 56,031.72-77,324.13-30,881.22

Finding the Fourth Proportional to 56,031.72, 77,324.13 and 30,881.22

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Solution

The fourth proportional to 56,031.72, 77,324.13 and 30,881.22 is: 42,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,031.72 : 77,324.13 = 30,881.22 : x
  2. Step 2: Convert to fraction form
    56,031.72/77,324.13 = 30,881.22/x
  3. Step 3: Cross multiply
    56,031.72x = 77,324.13 × 30,881.22
  4. Step 4: Simplify right side
    56,031.72x = 2,387,863,469.84
  5. Step 5: Solve for x
    x = 2,387,863,469.84/56,031.72
  6. Step 6: Final answer
    x = 42,616.28

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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.