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Finding the Fourth Proportional to 86,898.42, 119,917.53 and 51,080.22

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Solution

The fourth proportional to 86,898.42, 119,917.53 and 51,080.22 is: 70,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.42 : 119,917.53 = 51,080.22 : x
  2. Step 2: Convert to fraction form
    86,898.42/119,917.53 = 51,080.22/x
  3. Step 3: Cross multiply
    86,898.42x = 119,917.53 × 51,080.22
  4. Step 4: Simplify right side
    86,898.42x = 6,125,413,814.26
  5. Step 5: Solve for x
    x = 6,125,413,814.26/86,898.42
  6. Step 6: Final answer
    x = 70,489.36

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1.5x scale

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.