Home / 84,490.12-116,567.80-48,679.20

Finding the Fourth Proportional to 84,490.12, 116,567.80 and 48,679.20

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Solution

The fourth proportional to 84,490.12, 116,567.80 and 48,679.20 is: 67,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,490.12 : 116,567.80 = 48,679.20 : x
  2. Step 2: Convert to fraction form
    84,490.12/116,567.80 = 48,679.20/x
  3. Step 3: Cross multiply
    84,490.12x = 116,567.80 × 48,679.20
  4. Step 4: Simplify right side
    84,490.12x = 5,674,427,249.76
  5. Step 5: Solve for x
    x = 5,674,427,249.76/84,490.12
  6. Step 6: Final answer
    x = 67,160.84

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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.