Home / 72,582.72-100,164.15-40,752.30

Finding the Fourth Proportional to 72,582.72, 100,164.15 and 40,752.30

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Solution

The fourth proportional to 72,582.72, 100,164.15 and 40,752.30 is: 56,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582.72 : 100,164.15 = 40,752.30 : x
  2. Step 2: Convert to fraction form
    72,582.72/100,164.15 = 40,752.30/x
  3. Step 3: Cross multiply
    72,582.72x = 100,164.15 × 40,752.30
  4. Step 4: Simplify right side
    72,582.72x = 4,081,919,490.05
  5. Step 5: Solve for x
    x = 4,081,919,490.05/72,582.72
  6. Step 6: Final answer
    x = 56,238.18

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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.