Home / 71,928.93-99,261.03-40,097.76

Finding the Fourth Proportional to 71,928.93, 99,261.03 and 40,097.76

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Solution

The fourth proportional to 71,928.93, 99,261.03 and 40,097.76 is: 55,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,928.93 : 99,261.03 = 40,097.76 : x
  2. Step 2: Convert to fraction form
    71,928.93/99,261.03 = 40,097.76/x
  3. Step 3: Cross multiply
    71,928.93x = 99,261.03 × 40,097.76
  4. Step 4: Simplify right side
    71,928.93x = 3,980,144,958.29
  5. Step 5: Solve for x
    x = 3,980,144,958.29/71,928.93
  6. Step 6: Final answer
    x = 55,334.41

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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.