Home / 90,064.89-124,295.98-49,777.79

Finding the Fourth Proportional to 90,064.89, 124,295.98 and 49,777.79

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Solution

The fourth proportional to 90,064.89, 124,295.98 and 49,777.79 is: 68,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,064.89 : 124,295.98 = 49,777.79 : x
  2. Step 2: Convert to fraction form
    90,064.89/124,295.98 = 49,777.79/x
  3. Step 3: Cross multiply
    90,064.89x = 124,295.98 × 49,777.79
  4. Step 4: Simplify right side
    90,064.89x = 6,187,178,631.03
  5. Step 5: Solve for x
    x = 6,187,178,631.03/90,064.89
  6. Step 6: Final answer
    x = 68,696.90

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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.