Home / 72,023.70-99,392.79-40,192.59

Finding the Fourth Proportional to 72,023.70, 99,392.79 and 40,192.59

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Solution

The fourth proportional to 72,023.70, 99,392.79 and 40,192.59 is: 55,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,023.70 : 99,392.79 = 40,192.59 : x
  2. Step 2: Convert to fraction form
    72,023.70/99,392.79 = 40,192.59/x
  3. Step 3: Cross multiply
    72,023.70x = 99,392.79 × 40,192.59
  4. Step 4: Simplify right side
    72,023.70x = 3,994,853,657.43
  5. Step 5: Solve for x
    x = 3,994,853,657.43/72,023.70
  6. Step 6: Final answer
    x = 55,465.82

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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.