Home / 40,071.78-55,239.57-34,379.10

Finding the Fourth Proportional to 40,071.78, 55,239.57 and 34,379.10

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Solution

The fourth proportional to 40,071.78, 55,239.57 and 34,379.10 is: 47,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,071.78 : 55,239.57 = 34,379.10 : x
  2. Step 2: Convert to fraction form
    40,071.78/55,239.57 = 34,379.10/x
  3. Step 3: Cross multiply
    40,071.78x = 55,239.57 × 34,379.10
  4. Step 4: Simplify right side
    40,071.78x = 1,899,086,700.99
  5. Step 5: Solve for x
    x = 1,899,086,700.99/40,071.78
  6. Step 6: Final answer
    x = 47,392.12

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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.