Home / 78,308.82-108,066.24-42,498.83

Finding the Fourth Proportional to 78,308.82, 108,066.24 and 42,498.83

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Solution

The fourth proportional to 78,308.82, 108,066.24 and 42,498.83 is: 58,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,308.82 : 108,066.24 = 42,498.83 : x
  2. Step 2: Convert to fraction form
    78,308.82/108,066.24 = 42,498.83/x
  3. Step 3: Cross multiply
    78,308.82x = 108,066.24 × 42,498.83
  4. Step 4: Simplify right side
    78,308.82x = 4,592,688,222.17
  5. Step 5: Solve for x
    x = 4,592,688,222.17/78,308.82
  6. Step 6: Final answer
    x = 58,648.42

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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.