Home / 91,259.65-125,915.61-55,447.39

Finding the Fourth Proportional to 91,259.65, 125,915.61 and 55,447.39

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Solution

The fourth proportional to 91,259.65, 125,915.61 and 55,447.39 is: 76,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,259.65 : 125,915.61 = 55,447.39 : x
  2. Step 2: Convert to fraction form
    91,259.65/125,915.61 = 55,447.39/x
  3. Step 3: Cross multiply
    91,259.65x = 125,915.61 × 55,447.39
  4. Step 4: Simplify right side
    91,259.65x = 6,981,691,934.76
  5. Step 5: Solve for x
    x = 6,981,691,934.76/91,259.65
  6. Step 6: Final answer
    x = 76,503.60

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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.