Home / 90,609.90-124,896.25-61,529.14

Finding the Fourth Proportional to 90,609.90, 124,896.25 and 61,529.14

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Solution

The fourth proportional to 90,609.90, 124,896.25 and 61,529.14 is: 84,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609.90 : 124,896.25 = 61,529.14 : x
  2. Step 2: Convert to fraction form
    90,609.90/124,896.25 = 61,529.14/x
  3. Step 3: Cross multiply
    90,609.90x = 124,896.25 × 61,529.14
  4. Step 4: Simplify right side
    90,609.90x = 7,684,758,851.73
  5. Step 5: Solve for x
    x = 7,684,758,851.73/90,609.90
  6. Step 6: Final answer
    x = 84,811.48

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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.