Home / 61,031.20-84,186.29-40,334.77

Finding the Fourth Proportional to 61,031.20, 84,186.29 and 40,334.77

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Solution

The fourth proportional to 61,031.20, 84,186.29 and 40,334.77 is: 55,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,031.20 : 84,186.29 = 40,334.77 : x
  2. Step 2: Convert to fraction form
    61,031.20/84,186.29 = 40,334.77/x
  3. Step 3: Cross multiply
    61,031.20x = 84,186.29 × 40,334.77
  4. Step 4: Simplify right side
    61,031.20x = 3,395,634,741.88
  5. Step 5: Solve for x
    x = 3,395,634,741.88/61,031.20
  6. Step 6: Final answer
    x = 55,637.69

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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.