Home / 91,051.02-125,640.27-55,249.74

Finding the Fourth Proportional to 91,051.02, 125,640.27 and 55,249.74

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Solution

The fourth proportional to 91,051.02, 125,640.27 and 55,249.74 is: 76,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,051.02 : 125,640.27 = 55,249.74 : x
  2. Step 2: Convert to fraction form
    91,051.02/125,640.27 = 55,249.74/x
  3. Step 3: Cross multiply
    91,051.02x = 125,640.27 × 55,249.74
  4. Step 4: Simplify right side
    91,051.02x = 6,941,592,251.03
  5. Step 5: Solve for x
    x = 6,941,592,251.03/91,051.02
  6. Step 6: Final answer
    x = 76,238.49

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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.