Home / 90,007.72-124,141.62-54,160.36

Finding the Fourth Proportional to 90,007.72, 124,141.62 and 54,160.36

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Solution

The fourth proportional to 90,007.72, 124,141.62 and 54,160.36 is: 74,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,007.72 : 124,141.62 = 54,160.36 : x
  2. Step 2: Convert to fraction form
    90,007.72/124,141.62 = 54,160.36/x
  3. Step 3: Cross multiply
    90,007.72x = 124,141.62 × 54,160.36
  4. Step 4: Simplify right side
    90,007.72x = 6,723,554,830.18
  5. Step 5: Solve for x
    x = 6,723,554,830.18/90,007.72
  6. Step 6: Final answer
    x = 74,699.76

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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.