Home / 91,066.47-125,684.06-53,355.75

Finding the Fourth Proportional to 91,066.47, 125,684.06 and 53,355.75

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Solution

The fourth proportional to 91,066.47, 125,684.06 and 53,355.75 is: 73,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,066.47 : 125,684.06 = 53,355.75 : x
  2. Step 2: Convert to fraction form
    91,066.47/125,684.06 = 53,355.75/x
  3. Step 3: Cross multiply
    91,066.47x = 125,684.06 × 53,355.75
  4. Step 4: Simplify right side
    91,066.47x = 6,705,967,017.57
  5. Step 5: Solve for x
    x = 6,705,967,017.57/91,066.47
  6. Step 6: Final answer
    x = 73,638.16

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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.