Home / 90,082.50-124,303.08-49,790.82

Finding the Fourth Proportional to 90,082.50, 124,303.08 and 49,790.82

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Solution

The fourth proportional to 90,082.50, 124,303.08 and 49,790.82 is: 68,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,082.50 : 124,303.08 = 49,790.82 : x
  2. Step 2: Convert to fraction form
    90,082.50/124,303.08 = 49,790.82/x
  3. Step 3: Cross multiply
    90,082.50x = 124,303.08 × 49,790.82
  4. Step 4: Simplify right side
    90,082.50x = 6,189,152,281.73
  5. Step 5: Solve for x
    x = 6,189,152,281.73/90,082.50
  6. Step 6: Final answer
    x = 68,705.38

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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.