Home / 72,232.06-99,685.45-40,411.20

Finding the Fourth Proportional to 72,232.06, 99,685.45 and 40,411.20

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Solution

The fourth proportional to 72,232.06, 99,685.45 and 40,411.20 is: 55,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,232.06 : 99,685.45 = 40,411.20 : x
  2. Step 2: Convert to fraction form
    72,232.06/99,685.45 = 40,411.20/x
  3. Step 3: Cross multiply
    72,232.06x = 99,685.45 × 40,411.20
  4. Step 4: Simplify right side
    72,232.06x = 4,028,408,657.04
  5. Step 5: Solve for x
    x = 4,028,408,657.04/72,232.06
  6. Step 6: Final answer
    x = 55,770.37

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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.