Home / 86,530.20-129,722.40-44,977.20

Finding the Fourth Proportional to 86,530.20, 129,722.40 and 44,977.20

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Solution

The fourth proportional to 86,530.20, 129,722.40 and 44,977.20 is: 67,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,530.20 : 129,722.40 = 44,977.20 : x
  2. Step 2: Convert to fraction form
    86,530.20/129,722.40 = 44,977.20/x
  3. Step 3: Cross multiply
    86,530.20x = 129,722.40 × 44,977.20
  4. Step 4: Simplify right side
    86,530.20x = 5,834,550,329.28
  5. Step 5: Solve for x
    x = 5,834,550,329.28/86,530.20
  6. Step 6: Final answer
    x = 67,427.91

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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.