Home / 72,057.66-99,435.44-40,228.58

Finding the Fourth Proportional to 72,057.66, 99,435.44 and 40,228.58

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Solution

The fourth proportional to 72,057.66, 99,435.44 and 40,228.58 is: 55,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,057.66 : 99,435.44 = 40,228.58 : x
  2. Step 2: Convert to fraction form
    72,057.66/99,435.44 = 40,228.58/x
  3. Step 3: Cross multiply
    72,057.66x = 99,435.44 × 40,228.58
  4. Step 4: Simplify right side
    72,057.66x = 4,000,146,552.88
  5. Step 5: Solve for x
    x = 4,000,146,552.88/72,057.66
  6. Step 6: Final answer
    x = 55,513.13

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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.