Home / 84,656.10-126,985.23-58,353.78

Finding the Fourth Proportional to 84,656.10, 126,985.23 and 58,353.78

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Solution

The fourth proportional to 84,656.10, 126,985.23 and 58,353.78 is: 87,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,656.10 : 126,985.23 = 58,353.78 : x
  2. Step 2: Convert to fraction form
    84,656.10/126,985.23 = 58,353.78/x
  3. Step 3: Cross multiply
    84,656.10x = 126,985.23 × 58,353.78
  4. Step 4: Simplify right side
    84,656.10x = 7,410,068,174.67
  5. Step 5: Solve for x
    x = 7,410,068,174.67/84,656.10
  6. Step 6: Final answer
    x = 87,531.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.