Home / 77,281.12-107,193.52-75,232.60

Finding the Fourth Proportional to 77,281.12, 107,193.52 and 75,232.60

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Solution

The fourth proportional to 77,281.12, 107,193.52 and 75,232.60 is: 104,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281.12 : 107,193.52 = 75,232.60 : x
  2. Step 2: Convert to fraction form
    77,281.12/107,193.52 = 75,232.60/x
  3. Step 3: Cross multiply
    77,281.12x = 107,193.52 × 75,232.60
  4. Step 4: Simplify right side
    77,281.12x = 8,064,447,212.75
  5. Step 5: Solve for x
    x = 8,064,447,212.75/77,281.12
  6. Step 6: Final answer
    x = 104,352.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.