Home / 74,298.78-102,539.52-42,461.60

Finding the Fourth Proportional to 74,298.78, 102,539.52 and 42,461.60

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Solution

The fourth proportional to 74,298.78, 102,539.52 and 42,461.60 is: 58,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.78 : 102,539.52 = 42,461.60 : x
  2. Step 2: Convert to fraction form
    74,298.78/102,539.52 = 42,461.60/x
  3. Step 3: Cross multiply
    74,298.78x = 102,539.52 × 42,461.60
  4. Step 4: Simplify right side
    74,298.78x = 4,353,991,569.73
  5. Step 5: Solve for x
    x = 4,353,991,569.73/74,298.78
  6. Step 6: Final answer
    x = 58,601.12

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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.