Home / 72,360.17-99,863.45-40,528.84

Finding the Fourth Proportional to 72,360.17, 99,863.45 and 40,528.84

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Solution

The fourth proportional to 72,360.17, 99,863.45 and 40,528.84 is: 55,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.17 : 99,863.45 = 40,528.84 : x
  2. Step 2: Convert to fraction form
    72,360.17/99,863.45 = 40,528.84/x
  3. Step 3: Cross multiply
    72,360.17x = 99,863.45 × 40,528.84
  4. Step 4: Simplify right side
    72,360.17x = 4,047,349,786.90
  5. Step 5: Solve for x
    x = 4,047,349,786.90/72,360.17
  6. Step 6: Final answer
    x = 55,933.39

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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.