Home / 90,501.58-124,874.84-51,751.70

Finding the Fourth Proportional to 90,501.58, 124,874.84 and 51,751.70

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Solution

The fourth proportional to 90,501.58, 124,874.84 and 51,751.70 is: 71,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.58 : 124,874.84 = 51,751.70 : x
  2. Step 2: Convert to fraction form
    90,501.58/124,874.84 = 51,751.70/x
  3. Step 3: Cross multiply
    90,501.58x = 124,874.84 × 51,751.70
  4. Step 4: Simplify right side
    90,501.58x = 6,462,485,230.51
  5. Step 5: Solve for x
    x = 6,462,485,230.51/90,501.58
  6. Step 6: Final answer
    x = 71,407.43

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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.