Home / 72,052.56-99,428.36-40,223.48

Finding the Fourth Proportional to 72,052.56, 99,428.36 and 40,223.48

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Solution

The fourth proportional to 72,052.56, 99,428.36 and 40,223.48 is: 55,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.56 : 99,428.36 = 40,223.48 : x
  2. Step 2: Convert to fraction form
    72,052.56/99,428.36 = 40,223.48/x
  3. Step 3: Cross multiply
    72,052.56x = 99,428.36 × 40,223.48
  4. Step 4: Simplify right side
    72,052.56x = 3,999,353,951.63
  5. Step 5: Solve for x
    x = 3,999,353,951.63/72,052.56
  6. Step 6: Final answer
    x = 55,506.06

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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.