Home / 71,612.81-98,862.62-50,486.39

Finding the Fourth Proportional to 71,612.81, 98,862.62 and 50,486.39

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Solution

The fourth proportional to 71,612.81, 98,862.62 and 50,486.39 is: 69,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612.81 : 98,862.62 = 50,486.39 : x
  2. Step 2: Convert to fraction form
    71,612.81/98,862.62 = 50,486.39/x
  3. Step 3: Cross multiply
    71,612.81x = 98,862.62 × 50,486.39
  4. Step 4: Simplify right side
    71,612.81x = 4,991,216,043.00
  5. Step 5: Solve for x
    x = 4,991,216,043.00/71,612.81
  6. Step 6: Final answer
    x = 69,697.26

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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.