Home / 72,086.95-108,130.38-52,490.17

Finding the Fourth Proportional to 72,086.95, 108,130.38 and 52,490.17

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Solution

The fourth proportional to 72,086.95, 108,130.38 and 52,490.17 is: 78,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,086.95 : 108,130.38 = 52,490.17 : x
  2. Step 2: Convert to fraction form
    72,086.95/108,130.38 = 52,490.17/x
  3. Step 3: Cross multiply
    72,086.95x = 108,130.38 × 52,490.17
  4. Step 4: Simplify right side
    72,086.95x = 5,675,782,028.36
  5. Step 5: Solve for x
    x = 5,675,782,028.36/72,086.95
  6. Step 6: Final answer
    x = 78,735.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.