Home / 66,516.39-91,830.31-46,128.08

Finding the Fourth Proportional to 66,516.39, 91,830.31 and 46,128.08

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Solution

The fourth proportional to 66,516.39, 91,830.31 and 46,128.08 is: 63,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,516.39 : 91,830.31 = 46,128.08 : x
  2. Step 2: Convert to fraction form
    66,516.39/91,830.31 = 46,128.08/x
  3. Step 3: Cross multiply
    66,516.39x = 91,830.31 × 46,128.08
  4. Step 4: Simplify right side
    66,516.39x = 4,235,956,000.36
  5. Step 5: Solve for x
    x = 4,235,956,000.36/66,516.39
  6. Step 6: Final answer
    x = 63,682.89

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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.