Home / 71,132.36-98,164.64-39,303.28

Finding the Fourth Proportional to 71,132.36, 98,164.64 and 39,303.28

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Solution

The fourth proportional to 71,132.36, 98,164.64 and 39,303.28 is: 54,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.36 : 98,164.64 = 39,303.28 : x
  2. Step 2: Convert to fraction form
    71,132.36/98,164.64 = 39,303.28/x
  3. Step 3: Cross multiply
    71,132.36x = 98,164.64 × 39,303.28
  4. Step 4: Simplify right side
    71,132.36x = 3,858,192,332.02
  5. Step 5: Solve for x
    x = 3,858,192,332.02/71,132.36
  6. Step 6: Final answer
    x = 54,239.62

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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.