Home / 74,816.16-103,242.64-42,962.72

Finding the Fourth Proportional to 74,816.16, 103,242.64 and 42,962.72

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Solution

The fourth proportional to 74,816.16, 103,242.64 and 42,962.72 is: 59,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,816.16 : 103,242.64 = 42,962.72 : x
  2. Step 2: Convert to fraction form
    74,816.16/103,242.64 = 42,962.72/x
  3. Step 3: Cross multiply
    74,816.16x = 103,242.64 × 42,962.72
  4. Step 4: Simplify right side
    74,816.16x = 4,435,584,634.38
  5. Step 5: Solve for x
    x = 4,435,584,634.38/74,816.16
  6. Step 6: Final answer
    x = 59,286.45

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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.