Home / 85,298.36-127,685.09-55,652.36

Finding the Fourth Proportional to 85,298.36, 127,685.09 and 55,652.36

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Solution

The fourth proportional to 85,298.36, 127,685.09 and 55,652.36 is: 83,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,298.36 : 127,685.09 = 55,652.36 : x
  2. Step 2: Convert to fraction form
    85,298.36/127,685.09 = 55,652.36/x
  3. Step 3: Cross multiply
    85,298.36x = 127,685.09 × 55,652.36
  4. Step 4: Simplify right side
    85,298.36x = 7,105,976,096.02
  5. Step 5: Solve for x
    x = 7,105,976,096.02/85,298.36
  6. Step 6: Final answer
    x = 83,307.31

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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.