Home / 91,528.32-126,319.68-55,739.28

Finding the Fourth Proportional to 91,528.32, 126,319.68 and 55,739.28

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Solution

The fourth proportional to 91,528.32, 126,319.68 and 55,739.28 is: 76,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,528.32 : 126,319.68 = 55,739.28 : x
  2. Step 2: Convert to fraction form
    91,528.32/126,319.68 = 55,739.28/x
  3. Step 3: Cross multiply
    91,528.32x = 126,319.68 × 55,739.28
  4. Step 4: Simplify right side
    91,528.32x = 7,040,968,013.03
  5. Step 5: Solve for x
    x = 7,040,968,013.03/91,528.32
  6. Step 6: Final answer
    x = 76,926.66

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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.