Home / 98,359.26-135,728.37-55,909.50

Finding the Fourth Proportional to 98,359.26, 135,728.37 and 55,909.50

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Solution

The fourth proportional to 98,359.26, 135,728.37 and 55,909.50 is: 77,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,359.26 : 135,728.37 = 55,909.50 : x
  2. Step 2: Convert to fraction form
    98,359.26/135,728.37 = 55,909.50/x
  3. Step 3: Cross multiply
    98,359.26x = 135,728.37 × 55,909.50
  4. Step 4: Simplify right side
    98,359.26x = 7,588,505,302.52
  5. Step 5: Solve for x
    x = 7,588,505,302.52/98,359.26
  6. Step 6: Final answer
    x = 77,150.90

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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.