Home / 77,597.36-116,447-42,561.60

Finding the Fourth Proportional to 77,597.36, 116,447 and 42,561.60

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Solution

The fourth proportional to 77,597.36, 116,447 and 42,561.60 is: 63,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,597.36 : 116,447 = 42,561.60 : x
  2. Step 2: Convert to fraction form
    77,597.36/116,447 = 42,561.60/x
  3. Step 3: Cross multiply
    77,597.36x = 116,447 × 42,561.60
  4. Step 4: Simplify right side
    77,597.36x = 4,956,170,635.20
  5. Step 5: Solve for x
    x = 4,956,170,635.20/77,597.36
  6. Step 6: Final answer
    x = 63,870.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.