Home / 86,596.20-129,898.80-42,260.76

Finding the Fourth Proportional to 86,596.20, 129,898.80 and 42,260.76

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Solution

The fourth proportional to 86,596.20, 129,898.80 and 42,260.76 is: 63,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,596.20 : 129,898.80 = 42,260.76 : x
  2. Step 2: Convert to fraction form
    86,596.20/129,898.80 = 42,260.76/x
  3. Step 3: Cross multiply
    86,596.20x = 129,898.80 × 42,260.76
  4. Step 4: Simplify right side
    86,596.20x = 5,489,622,011.09
  5. Step 5: Solve for x
    x = 5,489,622,011.09/86,596.20
  6. Step 6: Final answer
    x = 63,393.34

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1.5x scale

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.