Home / 72,214.74-99,656.27-40,383.56

Finding the Fourth Proportional to 72,214.74, 99,656.27 and 40,383.56

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Solution

The fourth proportional to 72,214.74, 99,656.27 and 40,383.56 is: 55,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.74 : 99,656.27 = 40,383.56 : x
  2. Step 2: Convert to fraction form
    72,214.74/99,656.27 = 40,383.56/x
  3. Step 3: Cross multiply
    72,214.74x = 99,656.27 × 40,383.56
  4. Step 4: Simplify right side
    72,214.74x = 4,024,475,384.74
  5. Step 5: Solve for x
    x = 4,024,475,384.74/72,214.74
  6. Step 6: Final answer
    x = 55,729.28

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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.