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Finding the Fourth Proportional to 76,713.60, 114,962.40 and 60,945.60

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Solution

The fourth proportional to 76,713.60, 114,962.40 and 60,945.60 is: 91,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,713.60 : 114,962.40 = 60,945.60 : x
  2. Step 2: Convert to fraction form
    76,713.60/114,962.40 = 60,945.60/x
  3. Step 3: Cross multiply
    76,713.60x = 114,962.40 × 60,945.60
  4. Step 4: Simplify right side
    76,713.60x = 7,006,452,445.44
  5. Step 5: Solve for x
    x = 7,006,452,445.44/76,713.60
  6. Step 6: Final answer
    x = 91,332.60

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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.