Home / 85,506.25-128,263.02-23,176.75

Finding the Fourth Proportional to 85,506.25, 128,263.02 and 23,176.75

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Solution

The fourth proportional to 85,506.25, 128,263.02 and 23,176.75 is: 34,766.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,506.25 : 128,263.02 = 23,176.75 : x
  2. Step 2: Convert to fraction form
    85,506.25/128,263.02 = 23,176.75/x
  3. Step 3: Cross multiply
    85,506.25x = 128,263.02 × 23,176.75
  4. Step 4: Simplify right side
    85,506.25x = 2,972,719,948.79
  5. Step 5: Solve for x
    x = 2,972,719,948.79/85,506.25
  6. Step 6: Final answer
    x = 34,766.11

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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.