Home / 75,448.63-104,128.14-45,250.57

Finding the Fourth Proportional to 75,448.63, 104,128.14 and 45,250.57

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Solution

The fourth proportional to 75,448.63, 104,128.14 and 45,250.57 is: 62,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,448.63 : 104,128.14 = 45,250.57 : x
  2. Step 2: Convert to fraction form
    75,448.63/104,128.14 = 45,250.57/x
  3. Step 3: Cross multiply
    75,448.63x = 104,128.14 × 45,250.57
  4. Step 4: Simplify right side
    75,448.63x = 4,711,857,688.04
  5. Step 5: Solve for x
    x = 4,711,857,688.04/75,448.63
  6. Step 6: Final answer
    x = 62,451.20

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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.