Home / 90,102.76-124,329.10-51,847.76

Finding the Fourth Proportional to 90,102.76, 124,329.10 and 51,847.76

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Solution

The fourth proportional to 90,102.76, 124,329.10 and 51,847.76 is: 71,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,102.76 : 124,329.10 = 51,847.76 : x
  2. Step 2: Convert to fraction form
    90,102.76/124,329.10 = 51,847.76/x
  3. Step 3: Cross multiply
    90,102.76x = 124,329.10 × 51,847.76
  4. Step 4: Simplify right side
    90,102.76x = 6,446,185,337.82
  5. Step 5: Solve for x
    x = 6,446,185,337.82/90,102.76
  6. Step 6: Final answer
    x = 71,542.60

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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.