Home / 99,246.62-148,875.50-31,784.60

Finding the Fourth Proportional to 99,246.62, 148,875.50 and 31,784.60

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Solution

The fourth proportional to 99,246.62, 148,875.50 and 31,784.60 is: 47,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,246.62 : 148,875.50 = 31,784.60 : x
  2. Step 2: Convert to fraction form
    99,246.62/148,875.50 = 31,784.60/x
  3. Step 3: Cross multiply
    99,246.62x = 148,875.50 × 31,784.60
  4. Step 4: Simplify right side
    99,246.62x = 4,731,948,217.30
  5. Step 5: Solve for x
    x = 4,731,948,217.30/99,246.62
  6. Step 6: Final answer
    x = 47,678.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.