Home / 90,802.41-125,311.38-75,669.75

Finding the Fourth Proportional to 90,802.41, 125,311.38 and 75,669.75

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Solution

The fourth proportional to 90,802.41, 125,311.38 and 75,669.75 is: 104,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,802.41 : 125,311.38 = 75,669.75 : x
  2. Step 2: Convert to fraction form
    90,802.41/125,311.38 = 75,669.75/x
  3. Step 3: Cross multiply
    90,802.41x = 125,311.38 × 75,669.75
  4. Step 4: Simplify right side
    90,802.41x = 9,482,280,796.76
  5. Step 5: Solve for x
    x = 9,482,280,796.76/90,802.41
  6. Step 6: Final answer
    x = 104,427.63

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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.