Home / 86,626.48-129,835.08-42,186.64

Finding the Fourth Proportional to 86,626.48, 129,835.08 and 42,186.64

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Solution

The fourth proportional to 86,626.48, 129,835.08 and 42,186.64 is: 63,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,626.48 : 129,835.08 = 42,186.64 : x
  2. Step 2: Convert to fraction form
    86,626.48/129,835.08 = 42,186.64/x
  3. Step 3: Cross multiply
    86,626.48x = 129,835.08 × 42,186.64
  4. Step 4: Simplify right side
    86,626.48x = 5,477,305,779.33
  5. Step 5: Solve for x
    x = 5,477,305,779.33/86,626.48
  6. Step 6: Final answer
    x = 63,229.00

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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.