Home / 72,274.08-99,742.41-40,442.70

Finding the Fourth Proportional to 72,274.08, 99,742.41 and 40,442.70

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Solution

The fourth proportional to 72,274.08, 99,742.41 and 40,442.70 is: 55,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,274.08 : 99,742.41 = 40,442.70 : x
  2. Step 2: Convert to fraction form
    72,274.08/99,742.41 = 40,442.70/x
  3. Step 3: Cross multiply
    72,274.08x = 99,742.41 × 40,442.70
  4. Step 4: Simplify right side
    72,274.08x = 4,033,852,364.91
  5. Step 5: Solve for x
    x = 4,033,852,364.91/72,274.08
  6. Step 6: Final answer
    x = 55,813.26

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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.