Home / 72,573.08-100,150.78-40,742.04

Finding the Fourth Proportional to 72,573.08, 100,150.78 and 40,742.04

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Solution

The fourth proportional to 72,573.08, 100,150.78 and 40,742.04 is: 56,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,573.08 : 100,150.78 = 40,742.04 : x
  2. Step 2: Convert to fraction form
    72,573.08/100,150.78 = 40,742.04/x
  3. Step 3: Cross multiply
    72,573.08x = 100,150.78 × 40,742.04
  4. Step 4: Simplify right side
    72,573.08x = 4,080,346,881.08
  5. Step 5: Solve for x
    x = 4,080,346,881.08/72,573.08
  6. Step 6: Final answer
    x = 56,223.97

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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.