Home / 86,128.01-118,829.25-52,125.65

Finding the Fourth Proportional to 86,128.01, 118,829.25 and 52,125.65

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Solution

The fourth proportional to 86,128.01, 118,829.25 and 52,125.65 is: 71,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.01 : 118,829.25 = 52,125.65 : x
  2. Step 2: Convert to fraction form
    86,128.01/118,829.25 = 52,125.65/x
  3. Step 3: Cross multiply
    86,128.01x = 118,829.25 × 52,125.65
  4. Step 4: Simplify right side
    86,128.01x = 6,194,051,301.12
  5. Step 5: Solve for x
    x = 6,194,051,301.12/86,128.01
  6. Step 6: Final answer
    x = 71,916.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.