Home / 90,961.08-136,569.24-46,619.64

Finding the Fourth Proportional to 90,961.08, 136,569.24 and 46,619.64

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Solution

The fourth proportional to 90,961.08, 136,569.24 and 46,619.64 is: 69,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,961.08 : 136,569.24 = 46,619.64 : x
  2. Step 2: Convert to fraction form
    90,961.08/136,569.24 = 46,619.64/x
  3. Step 3: Cross multiply
    90,961.08x = 136,569.24 × 46,619.64
  4. Step 4: Simplify right side
    90,961.08x = 6,366,808,803.87
  5. Step 5: Solve for x
    x = 6,366,808,803.87/90,961.08
  6. Step 6: Final answer
    x = 69,994.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.