Home / 72,247.66-99,703.84-40,416.68

Finding the Fourth Proportional to 72,247.66, 99,703.84 and 40,416.68

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Solution

The fourth proportional to 72,247.66, 99,703.84 and 40,416.68 is: 55,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.66 : 99,703.84 = 40,416.68 : x
  2. Step 2: Convert to fraction form
    72,247.66/99,703.84 = 40,416.68/x
  3. Step 3: Cross multiply
    72,247.66x = 99,703.84 × 40,416.68
  4. Step 4: Simplify right side
    72,247.66x = 4,029,698,196.05
  5. Step 5: Solve for x
    x = 4,029,698,196.05/72,247.66
  6. Step 6: Final answer
    x = 55,776.18

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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.