Home / 91,011.60-125,580.78-50,716.53

Finding the Fourth Proportional to 91,011.60, 125,580.78 and 50,716.53

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Solution

The fourth proportional to 91,011.60, 125,580.78 and 50,716.53 is: 69,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,011.60 : 125,580.78 = 50,716.53 : x
  2. Step 2: Convert to fraction form
    91,011.60/125,580.78 = 50,716.53/x
  3. Step 3: Cross multiply
    91,011.60x = 125,580.78 × 50,716.53
  4. Step 4: Simplify right side
    91,011.60x = 6,369,021,396.29
  5. Step 5: Solve for x
    x = 6,369,021,396.29/91,011.60
  6. Step 6: Final answer
    x = 69,980.33

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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.