Home / 72,419.16-99,933.30-40,582.92

Finding the Fourth Proportional to 72,419.16, 99,933.30 and 40,582.92

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Solution

The fourth proportional to 72,419.16, 99,933.30 and 40,582.92 is: 56,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,419.16 : 99,933.30 = 40,582.92 : x
  2. Step 2: Convert to fraction form
    72,419.16/99,933.30 = 40,582.92/x
  3. Step 3: Cross multiply
    72,419.16x = 99,933.30 × 40,582.92
  4. Step 4: Simplify right side
    72,419.16x = 4,055,585,119.24
  5. Step 5: Solve for x
    x = 4,055,585,119.24/72,419.16
  6. Step 6: Final answer
    x = 56,001.55

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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.