Home / 99,015.92-148,464.55-31,518.80

Finding the Fourth Proportional to 99,015.92, 148,464.55 and 31,518.80

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Solution

The fourth proportional to 99,015.92, 148,464.55 and 31,518.80 is: 47,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.92 : 148,464.55 = 31,518.80 : x
  2. Step 2: Convert to fraction form
    99,015.92/148,464.55 = 31,518.80/x
  3. Step 3: Cross multiply
    99,015.92x = 148,464.55 × 31,518.80
  4. Step 4: Simplify right side
    99,015.92x = 4,679,424,300.95
  5. Step 5: Solve for x
    x = 4,679,424,300.95/99,015.92
  6. Step 6: Final answer
    x = 47,259.31

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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.