Home / 72,026.74-99,385-40,195.56

Finding the Fourth Proportional to 72,026.74, 99,385 and 40,195.56

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Solution

The fourth proportional to 72,026.74, 99,385 and 40,195.56 is: 55,463.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,026.74 : 99,385 = 40,195.56 : x
  2. Step 2: Convert to fraction form
    72,026.74/99,385 = 40,195.56/x
  3. Step 3: Cross multiply
    72,026.74x = 99,385 × 40,195.56
  4. Step 4: Simplify right side
    72,026.74x = 3,994,835,730.60
  5. Step 5: Solve for x
    x = 3,994,835,730.60/72,026.74
  6. Step 6: Final answer
    x = 55,463.23

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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.