Home / 66,435.14-91,628.64-42,564.04

Finding the Fourth Proportional to 66,435.14, 91,628.64 and 42,564.04

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Solution

The fourth proportional to 66,435.14, 91,628.64 and 42,564.04 is: 58,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,435.14 : 91,628.64 = 42,564.04 : x
  2. Step 2: Convert to fraction form
    66,435.14/91,628.64 = 42,564.04/x
  3. Step 3: Cross multiply
    66,435.14x = 91,628.64 × 42,564.04
  4. Step 4: Simplify right side
    66,435.14x = 3,900,085,098.11
  5. Step 5: Solve for x
    x = 3,900,085,098.11/66,435.14
  6. Step 6: Final answer
    x = 58,705.15

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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.