Home / 78,442.36-108,249.04-42,632.48

Finding the Fourth Proportional to 78,442.36, 108,249.04 and 42,632.48

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Solution

The fourth proportional to 78,442.36, 108,249.04 and 42,632.48 is: 58,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,442.36 : 108,249.04 = 42,632.48 : x
  2. Step 2: Convert to fraction form
    78,442.36/108,249.04 = 42,632.48/x
  3. Step 3: Cross multiply
    78,442.36x = 108,249.04 × 42,632.48
  4. Step 4: Simplify right side
    78,442.36x = 4,614,925,032.82
  5. Step 5: Solve for x
    x = 4,614,925,032.82/78,442.36
  6. Step 6: Final answer
    x = 58,832.05

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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.