Home / 84,278.78-116,308.10-48,468.78

Finding the Fourth Proportional to 84,278.78, 116,308.10 and 48,468.78

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Solution

The fourth proportional to 84,278.78, 116,308.10 and 48,468.78 is: 66,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,278.78 : 116,308.10 = 48,468.78 : x
  2. Step 2: Convert to fraction form
    84,278.78/116,308.10 = 48,468.78/x
  3. Step 3: Cross multiply
    84,278.78x = 116,308.10 × 48,468.78
  4. Step 4: Simplify right side
    84,278.78x = 5,637,311,832.29
  5. Step 5: Solve for x
    x = 5,637,311,832.29/84,278.78
  6. Step 6: Final answer
    x = 66,888.86

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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.