Home / 80,762.38-121,148.42-25,358.38

Finding the Fourth Proportional to 80,762.38, 121,148.42 and 25,358.38

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Solution

The fourth proportional to 80,762.38, 121,148.42 and 25,358.38 is: 38,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762.38 : 121,148.42 = 25,358.38 : x
  2. Step 2: Convert to fraction form
    80,762.38/121,148.42 = 25,358.38/x
  3. Step 3: Cross multiply
    80,762.38x = 121,148.42 × 25,358.38
  4. Step 4: Simplify right side
    80,762.38x = 3,072,127,670.76
  5. Step 5: Solve for x
    x = 3,072,127,670.76/80,762.38
  6. Step 6: Final answer
    x = 38,039.09

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1.5x scale

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.