Home / 72,333.76-99,822.36-40,509.13

Finding the Fourth Proportional to 72,333.76, 99,822.36 and 40,509.13

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Solution

The fourth proportional to 72,333.76, 99,822.36 and 40,509.13 is: 55,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,333.76 : 99,822.36 = 40,509.13 : x
  2. Step 2: Convert to fraction form
    72,333.76/99,822.36 = 40,509.13/x
  3. Step 3: Cross multiply
    72,333.76x = 99,822.36 × 40,509.13
  4. Step 4: Simplify right side
    72,333.76x = 4,043,716,958.15
  5. Step 5: Solve for x
    x = 4,043,716,958.15/72,333.76
  6. Step 6: Final answer
    x = 55,903.59

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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.