Home / 78,452.05-108,263.23-42,642.32

Finding the Fourth Proportional to 78,452.05, 108,263.23 and 42,642.32

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Solution

The fourth proportional to 78,452.05, 108,263.23 and 42,642.32 is: 58,846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,452.05 : 108,263.23 = 42,642.32 : x
  2. Step 2: Convert to fraction form
    78,452.05/108,263.23 = 42,642.32/x
  3. Step 3: Cross multiply
    78,452.05x = 108,263.23 × 42,642.32
  4. Step 4: Simplify right side
    78,452.05x = 4,616,594,649.97
  5. Step 5: Solve for x
    x = 4,616,594,649.97/78,452.05
  6. Step 6: Final answer
    x = 58,846.07

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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.