Home / 91,187.10-125,895.09-58,938.60

Finding the Fourth Proportional to 91,187.10, 125,895.09 and 58,938.60

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Solution

The fourth proportional to 91,187.10, 125,895.09 and 58,938.60 is: 81,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,187.10 : 125,895.09 = 58,938.60 : x
  2. Step 2: Convert to fraction form
    91,187.10/125,895.09 = 58,938.60/x
  3. Step 3: Cross multiply
    91,187.10x = 125,895.09 × 58,938.60
  4. Step 4: Simplify right side
    91,187.10x = 7,420,080,351.47
  5. Step 5: Solve for x
    x = 7,420,080,351.47/91,187.10
  6. Step 6: Final answer
    x = 81,372.04

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1.5x scale

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.