Home / 78,462.39-117,627.21-34,055.76

Finding the Fourth Proportional to 78,462.39, 117,627.21 and 34,055.76

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Solution

The fourth proportional to 78,462.39, 117,627.21 and 34,055.76 is: 51,054.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,462.39 : 117,627.21 = 34,055.76 : x
  2. Step 2: Convert to fraction form
    78,462.39/117,627.21 = 34,055.76/x
  3. Step 3: Cross multiply
    78,462.39x = 117,627.21 × 34,055.76
  4. Step 4: Simplify right side
    78,462.39x = 4,005,884,033.23
  5. Step 5: Solve for x
    x = 4,005,884,033.23/78,462.39
  6. Step 6: Final answer
    x = 51,054.83

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1.5x scale

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.