Home / 72,162.36-99,627.12-45,327.84

Finding the Fourth Proportional to 72,162.36, 99,627.12 and 45,327.84

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Solution

The fourth proportional to 72,162.36, 99,627.12 and 45,327.84 is: 62,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,162.36 : 99,627.12 = 45,327.84 : x
  2. Step 2: Convert to fraction form
    72,162.36/99,627.12 = 45,327.84/x
  3. Step 3: Cross multiply
    72,162.36x = 99,627.12 × 45,327.84
  4. Step 4: Simplify right side
    72,162.36x = 4,515,882,155.02
  5. Step 5: Solve for x
    x = 4,515,882,155.02/72,162.36
  6. Step 6: Final answer
    x = 62,579.47

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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.