Home / 85,132.80-127,777.88-43,042.48

Finding the Fourth Proportional to 85,132.80, 127,777.88 and 43,042.48

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Solution

The fourth proportional to 85,132.80, 127,777.88 and 43,042.48 is: 64,603.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,132.80 : 127,777.88 = 43,042.48 : x
  2. Step 2: Convert to fraction form
    85,132.80/127,777.88 = 43,042.48/x
  3. Step 3: Cross multiply
    85,132.80x = 127,777.88 × 43,042.48
  4. Step 4: Simplify right side
    85,132.80x = 5,499,876,844.34
  5. Step 5: Solve for x
    x = 5,499,876,844.34/85,132.80
  6. Step 6: Final answer
    x = 64,603.50

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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.