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Finding the Fourth Proportional to 90,552.51, 125,007.44 and 56,579.90

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Solution

The fourth proportional to 90,552.51, 125,007.44 and 56,579.90 is: 78,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,552.51 : 125,007.44 = 56,579.90 : x
  2. Step 2: Convert to fraction form
    90,552.51/125,007.44 = 56,579.90/x
  3. Step 3: Cross multiply
    90,552.51x = 125,007.44 × 56,579.90
  4. Step 4: Simplify right side
    90,552.51x = 7,072,907,546.52
  5. Step 5: Solve for x
    x = 7,072,907,546.52/90,552.51
  6. Step 6: Final answer
    x = 78,108.35

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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.