Home / 72,003.60-99,334.26-45,127.80

Finding the Fourth Proportional to 72,003.60, 99,334.26 and 45,127.80

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Solution

The fourth proportional to 72,003.60, 99,334.26 and 45,127.80 is: 62,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,003.60 : 99,334.26 = 45,127.80 : x
  2. Step 2: Convert to fraction form
    72,003.60/99,334.26 = 45,127.80/x
  3. Step 3: Cross multiply
    72,003.60x = 99,334.26 × 45,127.80
  4. Step 4: Simplify right side
    72,003.60x = 4,482,736,618.43
  5. Step 5: Solve for x
    x = 4,482,736,618.43/72,003.60
  6. Step 6: Final answer
    x = 62,257.12

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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.