Home / 86,941.64-119,979.96-51,133.16

Finding the Fourth Proportional to 86,941.64, 119,979.96 and 51,133.16

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Solution

The fourth proportional to 86,941.64, 119,979.96 and 51,133.16 is: 70,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,941.64 : 119,979.96 = 51,133.16 : x
  2. Step 2: Convert to fraction form
    86,941.64/119,979.96 = 51,133.16/x
  3. Step 3: Cross multiply
    86,941.64x = 119,979.96 × 51,133.16
  4. Step 4: Simplify right side
    86,941.64x = 6,134,954,491.47
  5. Step 5: Solve for x
    x = 6,134,954,491.47/86,941.64
  6. Step 6: Final answer
    x = 70,564.05

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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.