Home / 80,829.43-111,548.08-45,019.45

Finding the Fourth Proportional to 80,829.43, 111,548.08 and 45,019.45

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Solution

The fourth proportional to 80,829.43, 111,548.08 and 45,019.45 is: 62,128.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829.43 : 111,548.08 = 45,019.45 : x
  2. Step 2: Convert to fraction form
    80,829.43/111,548.08 = 45,019.45/x
  3. Step 3: Cross multiply
    80,829.43x = 111,548.08 × 45,019.45
  4. Step 4: Simplify right side
    80,829.43x = 5,021,833,210.16
  5. Step 5: Solve for x
    x = 5,021,833,210.16/80,829.43
  6. Step 6: Final answer
    x = 62,128.77

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1.5x scale

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.