Home / 74,031.01-102,162.40-40,039.22

Finding the Fourth Proportional to 74,031.01, 102,162.40 and 40,039.22

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Solution

The fourth proportional to 74,031.01, 102,162.40 and 40,039.22 is: 55,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.01 : 102,162.40 = 40,039.22 : x
  2. Step 2: Convert to fraction form
    74,031.01/102,162.40 = 40,039.22/x
  3. Step 3: Cross multiply
    74,031.01x = 102,162.40 × 40,039.22
  4. Step 4: Simplify right side
    74,031.01x = 4,090,503,277.22
  5. Step 5: Solve for x
    x = 4,090,503,277.22/74,031.01
  6. Step 6: Final answer
    x = 55,253.91

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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.