Home / 91,766.16-137,301.36-54,346.32

Finding the Fourth Proportional to 91,766.16, 137,301.36 and 54,346.32

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Solution

The fourth proportional to 91,766.16, 137,301.36 and 54,346.32 is: 81,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,766.16 : 137,301.36 = 54,346.32 : x
  2. Step 2: Convert to fraction form
    91,766.16/137,301.36 = 54,346.32/x
  3. Step 3: Cross multiply
    91,766.16x = 137,301.36 × 54,346.32
  4. Step 4: Simplify right side
    91,766.16x = 7,461,823,647.00
  5. Step 5: Solve for x
    x = 7,461,823,647.00/91,766.16
  6. Step 6: Final answer
    x = 81,313.46

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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.