Home / 74,555.18-102,878.45-42,283.27

Finding the Fourth Proportional to 74,555.18, 102,878.45 and 42,283.27

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Solution

The fourth proportional to 74,555.18, 102,878.45 and 42,283.27 is: 58,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,555.18 : 102,878.45 = 42,283.27 : x
  2. Step 2: Convert to fraction form
    74,555.18/102,878.45 = 42,283.27/x
  3. Step 3: Cross multiply
    74,555.18x = 102,878.45 × 42,283.27
  4. Step 4: Simplify right side
    74,555.18x = 4,350,037,013.43
  5. Step 5: Solve for x
    x = 4,350,037,013.43/74,555.18
  6. Step 6: Final answer
    x = 58,346.54

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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.