Home / 72,052.35-99,428.12-40,223.27

Finding the Fourth Proportional to 72,052.35, 99,428.12 and 40,223.27

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Solution

The fourth proportional to 72,052.35, 99,428.12 and 40,223.27 is: 55,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.35 : 99,428.12 = 40,223.27 : x
  2. Step 2: Convert to fraction form
    72,052.35/99,428.12 = 40,223.27/x
  3. Step 3: Cross multiply
    72,052.35x = 99,428.12 × 40,223.27
  4. Step 4: Simplify right side
    72,052.35x = 3,999,323,418.10
  5. Step 5: Solve for x
    x = 3,999,323,418.10/72,052.35
  6. Step 6: Final answer
    x = 55,505.80

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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.