Home / 86,299.13-129,466.35-36,379.24

Finding the Fourth Proportional to 86,299.13, 129,466.35 and 36,379.24

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Solution

The fourth proportional to 86,299.13, 129,466.35 and 36,379.24 is: 54,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,299.13 : 129,466.35 = 36,379.24 : x
  2. Step 2: Convert to fraction form
    86,299.13/129,466.35 = 36,379.24/x
  3. Step 3: Cross multiply
    86,299.13x = 129,466.35 × 36,379.24
  4. Step 4: Simplify right side
    86,299.13x = 4,709,887,094.91
  5. Step 5: Solve for x
    x = 4,709,887,094.91/86,299.13
  6. Step 6: Final answer
    x = 54,576.30

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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.