Home / 40,642.32-56,105.57-30,574.59

Finding the Fourth Proportional to 40,642.32, 56,105.57 and 30,574.59

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Solution

The fourth proportional to 40,642.32, 56,105.57 and 30,574.59 is: 42,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,642.32 : 56,105.57 = 30,574.59 : x
  2. Step 2: Convert to fraction form
    40,642.32/56,105.57 = 30,574.59/x
  3. Step 3: Cross multiply
    40,642.32x = 56,105.57 × 30,574.59
  4. Step 4: Simplify right side
    40,642.32x = 1,715,404,799.47
  5. Step 5: Solve for x
    x = 1,715,404,799.47/40,642.32
  6. Step 6: Final answer
    x = 42,207.36

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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.