Home / 85,350.24-128,003.49-58,690.71

Finding the Fourth Proportional to 85,350.24, 128,003.49 and 58,690.71

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Solution

The fourth proportional to 85,350.24, 128,003.49 and 58,690.71 is: 88,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,350.24 : 128,003.49 = 58,690.71 : x
  2. Step 2: Convert to fraction form
    85,350.24/128,003.49 = 58,690.71/x
  3. Step 3: Cross multiply
    85,350.24x = 128,003.49 × 58,690.71
  4. Step 4: Simplify right side
    85,350.24x = 7,512,615,710.58
  5. Step 5: Solve for x
    x = 7,512,615,710.58/85,350.24
  6. Step 6: Final answer
    x = 88,021.03

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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.