Home / 99,501.90-149,052.78-49,430.40

Finding the Fourth Proportional to 99,501.90, 149,052.78 and 49,430.40

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Solution

The fourth proportional to 99,501.90, 149,052.78 and 49,430.40 is: 74,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,501.90 : 149,052.78 = 49,430.40 : x
  2. Step 2: Convert to fraction form
    99,501.90/149,052.78 = 49,430.40/x
  3. Step 3: Cross multiply
    99,501.90x = 149,052.78 × 49,430.40
  4. Step 4: Simplify right side
    99,501.90x = 7,367,738,536.51
  5. Step 5: Solve for x
    x = 7,367,738,536.51/99,501.90
  6. Step 6: Final answer
    x = 74,046.21

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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.