Home / 72,722.21-100,356.37-42,501.51

Finding the Fourth Proportional to 72,722.21, 100,356.37 and 42,501.51

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Solution

The fourth proportional to 72,722.21, 100,356.37 and 42,501.51 is: 58,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,722.21 : 100,356.37 = 42,501.51 : x
  2. Step 2: Convert to fraction form
    72,722.21/100,356.37 = 42,501.51/x
  3. Step 3: Cross multiply
    72,722.21x = 100,356.37 × 42,501.51
  4. Step 4: Simplify right side
    72,722.21x = 4,265,297,156.86
  5. Step 5: Solve for x
    x = 4,265,297,156.86/72,722.21
  6. Step 6: Final answer
    x = 58,651.92

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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.