Home / 90,185.73-124,455.51-53,885.20

Finding the Fourth Proportional to 90,185.73, 124,455.51 and 53,885.20

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Solution

The fourth proportional to 90,185.73, 124,455.51 and 53,885.20 is: 74,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,185.73 : 124,455.51 = 53,885.20 : x
  2. Step 2: Convert to fraction form
    90,185.73/124,455.51 = 53,885.20/x
  3. Step 3: Cross multiply
    90,185.73x = 124,455.51 × 53,885.20
  4. Step 4: Simplify right side
    90,185.73x = 6,706,310,174.01
  5. Step 5: Solve for x
    x = 6,706,310,174.01/90,185.73
  6. Step 6: Final answer
    x = 74,361.10

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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.