Home / 74,078.64-102,283.47-45,437.82

Finding the Fourth Proportional to 74,078.64, 102,283.47 and 45,437.82

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Solution

The fourth proportional to 74,078.64, 102,283.47 and 45,437.82 is: 62,737.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078.64 : 102,283.47 = 45,437.82 : x
  2. Step 2: Convert to fraction form
    74,078.64/102,283.47 = 45,437.82/x
  3. Step 3: Cross multiply
    74,078.64x = 102,283.47 × 45,437.82
  4. Step 4: Simplify right side
    74,078.64x = 4,647,537,898.84
  5. Step 5: Solve for x
    x = 4,647,537,898.84/74,078.64
  6. Step 6: Final answer
    x = 62,737.89

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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.