Home / 66,069.96-99,113.76-19,322.16

Finding the Fourth Proportional to 66,069.96, 99,113.76 and 19,322.16

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Solution

The fourth proportional to 66,069.96, 99,113.76 and 19,322.16 is: 28,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,069.96 : 99,113.76 = 19,322.16 : x
  2. Step 2: Convert to fraction form
    66,069.96/99,113.76 = 19,322.16/x
  3. Step 3: Cross multiply
    66,069.96x = 99,113.76 × 19,322.16
  4. Step 4: Simplify right side
    66,069.96x = 1,915,091,928.92
  5. Step 5: Solve for x
    x = 1,915,091,928.92/66,069.96
  6. Step 6: Final answer
    x = 28,985.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.