Home / 85,259.81-117,659.28-47,020.87

Finding the Fourth Proportional to 85,259.81, 117,659.28 and 47,020.87

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Solution

The fourth proportional to 85,259.81, 117,659.28 and 47,020.87 is: 64,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,259.81 : 117,659.28 = 47,020.87 : x
  2. Step 2: Convert to fraction form
    85,259.81/117,659.28 = 47,020.87/x
  3. Step 3: Cross multiply
    85,259.81x = 117,659.28 × 47,020.87
  4. Step 4: Simplify right side
    85,259.81x = 5,532,441,415.03
  5. Step 5: Solve for x
    x = 5,532,441,415.03/85,259.81
  6. Step 6: Final answer
    x = 64,889.21

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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.