Home / 99,723.43-149,584-28,647.81

Finding the Fourth Proportional to 99,723.43, 149,584 and 28,647.81

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Solution

The fourth proportional to 99,723.43, 149,584 and 28,647.81 is: 42,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,723.43 : 149,584 = 28,647.81 : x
  2. Step 2: Convert to fraction form
    99,723.43/149,584 = 28,647.81/x
  3. Step 3: Cross multiply
    99,723.43x = 149,584 × 28,647.81
  4. Step 4: Simplify right side
    99,723.43x = 4,285,254,011.04
  5. Step 5: Solve for x
    x = 4,285,254,011.04/99,723.43
  6. Step 6: Final answer
    x = 42,971.39

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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.