Home / 66,666.42-99,411.54-66,066.36

Finding the Fourth Proportional to 66,666.42, 99,411.54 and 66,066.36

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Solution

The fourth proportional to 66,666.42, 99,411.54 and 66,066.36 is: 98,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,666.42 : 99,411.54 = 66,066.36 : x
  2. Step 2: Convert to fraction form
    66,666.42/99,411.54 = 66,066.36/x
  3. Step 3: Cross multiply
    66,666.42x = 99,411.54 × 66,066.36
  4. Step 4: Simplify right side
    66,666.42x = 6,567,758,589.79
  5. Step 5: Solve for x
    x = 6,567,758,589.79/66,666.42
  6. Step 6: Final answer
    x = 98,516.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.