Home / 86,916.20-130,374.30-34,298.60

Finding the Fourth Proportional to 86,916.20, 130,374.30 and 34,298.60

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Solution

The fourth proportional to 86,916.20, 130,374.30 and 34,298.60 is: 51,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916.20 : 130,374.30 = 34,298.60 : x
  2. Step 2: Convert to fraction form
    86,916.20/130,374.30 = 34,298.60/x
  3. Step 3: Cross multiply
    86,916.20x = 130,374.30 × 34,298.60
  4. Step 4: Simplify right side
    86,916.20x = 4,471,655,965.98
  5. Step 5: Solve for x
    x = 4,471,655,965.98/86,916.20
  6. Step 6: Final answer
    x = 51,447.90

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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.