Home / 90,105.36-124,390.53-58,299.90

Finding the Fourth Proportional to 90,105.36, 124,390.53 and 58,299.90

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Solution

The fourth proportional to 90,105.36, 124,390.53 and 58,299.90 is: 80,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,105.36 : 124,390.53 = 58,299.90 : x
  2. Step 2: Convert to fraction form
    90,105.36/124,390.53 = 58,299.90/x
  3. Step 3: Cross multiply
    90,105.36x = 124,390.53 × 58,299.90
  4. Step 4: Simplify right side
    90,105.36x = 7,251,955,459.95
  5. Step 5: Solve for x
    x = 7,251,955,459.95/90,105.36
  6. Step 6: Final answer
    x = 80,483.06

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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.