Home / 84,869.10-127,303.65-55,344.60

Finding the Fourth Proportional to 84,869.10, 127,303.65 and 55,344.60

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Solution

The fourth proportional to 84,869.10, 127,303.65 and 55,344.60 is: 83,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,869.10 : 127,303.65 = 55,344.60 : x
  2. Step 2: Convert to fraction form
    84,869.10/127,303.65 = 55,344.60/x
  3. Step 3: Cross multiply
    84,869.10x = 127,303.65 × 55,344.60
  4. Step 4: Simplify right side
    84,869.10x = 7,045,569,587.79
  5. Step 5: Solve for x
    x = 7,045,569,587.79/84,869.10
  6. Step 6: Final answer
    x = 83,016.90

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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.