Home / 90,590.87-125,011.22-50,307.21

Finding the Fourth Proportional to 90,590.87, 125,011.22 and 50,307.21

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Solution

The fourth proportional to 90,590.87, 125,011.22 and 50,307.21 is: 69,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,590.87 : 125,011.22 = 50,307.21 : x
  2. Step 2: Convert to fraction form
    90,590.87/125,011.22 = 50,307.21/x
  3. Step 3: Cross multiply
    90,590.87x = 125,011.22 × 50,307.21
  4. Step 4: Simplify right side
    90,590.87x = 6,288,965,445.36
  5. Step 5: Solve for x
    x = 6,288,965,445.36/90,590.87
  6. Step 6: Final answer
    x = 69,421.62

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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.