Home / 72,360.68-99,864.14-40,529.34

Finding the Fourth Proportional to 72,360.68, 99,864.14 and 40,529.34

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Solution

The fourth proportional to 72,360.68, 99,864.14 and 40,529.34 is: 55,934.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.68 : 99,864.14 = 40,529.34 : x
  2. Step 2: Convert to fraction form
    72,360.68/99,864.14 = 40,529.34/x
  3. Step 3: Cross multiply
    72,360.68x = 99,864.14 × 40,529.34
  4. Step 4: Simplify right side
    72,360.68x = 4,047,427,481.22
  5. Step 5: Solve for x
    x = 4,047,427,481.22/72,360.68
  6. Step 6: Final answer
    x = 55,934.08

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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.