Home / 86,004.20-129,014.40-33,417.74

Finding the Fourth Proportional to 86,004.20, 129,014.40 and 33,417.74

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Solution

The fourth proportional to 86,004.20, 129,014.40 and 33,417.74 is: 50,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,004.20 : 129,014.40 = 33,417.74 : x
  2. Step 2: Convert to fraction form
    86,004.20/129,014.40 = 33,417.74/x
  3. Step 3: Cross multiply
    86,004.20x = 129,014.40 × 33,417.74
  4. Step 4: Simplify right side
    86,004.20x = 4,311,369,675.46
  5. Step 5: Solve for x
    x = 4,311,369,675.46/86,004.20
  6. Step 6: Final answer
    x = 50,129.76

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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.