Home / 74,835.28-103,272.74-55,731.48

Finding the Fourth Proportional to 74,835.28, 103,272.74 and 55,731.48

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Solution

The fourth proportional to 74,835.28, 103,272.74 and 55,731.48 is: 76,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,835.28 : 103,272.74 = 55,731.48 : x
  2. Step 2: Convert to fraction form
    74,835.28/103,272.74 = 55,731.48/x
  3. Step 3: Cross multiply
    74,835.28x = 103,272.74 × 55,731.48
  4. Step 4: Simplify right side
    74,835.28x = 5,755,542,643.86
  5. Step 5: Solve for x
    x = 5,755,542,643.86/74,835.28
  6. Step 6: Final answer
    x = 76,909.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.